The correct order of steps showing how changes in pressure influence the opening and closing of heart valves on the left side of the heart is as following from critical for ensuring proper blood flow and circulation throughout the body
1.Blood flows from the atria into the ventricle, through the open mitral valve. Ventricular pressure exceeds atrial pressure.
2.Ventricular contraction begins; ventricular pressure exceeds aortic pressure.
3.Ventricular pressure exceeds aortic pressure. Ventricular volume 4.increases, ventricular pressure increases.
5.Ventricle contracts against closed mitral and aortic valves.
Mitral valve closes.
6.Aortic valve opens. Blood is ejected from the ventricle into the aorta.
7.Aortic pressure exceeds ventricular pressure.
8.Aortic valve closes.
In this process, changes in pressure within the heart lead to the opening and closing of the mitral and aortic valves, which regulate the flow of blood between the atria and circulation , and from the ventricle into the aorta, respectively. The opening and closing of these valves is critical for ensuring proper blood flow and circulation throughout the body.
Learn more about circulation here:
https://brainly.com/question/1626001
#SPJ4
The history and physical examination is a detailed process that attempts to establish a connection between the information provided by the patient about their health and lifestyle with the physical findings from the inspection of each of the eleven body systems. Which of ko’s symptoms is paired incorrectly with the body system that might produce that symptom?
The history and physical examination is an important process in diagnosing a patient's health conditions. The information provided by the patient and the physical findings from the examination of the eleven body systems are crucial in establishing a connection between the patient's symptoms and their underlying health conditions.
It is possible that a symptom may be paired incorrectly with the body system that might produce it. This can occur due to a lack of information, misinterpretation of symptoms, or a misdiagnosis.
For example, a patient may experience abdominal pain and assume that it is related to a digestive problem when, in fact, the pain could be originating from the reproductive or urinary system. Similarly, a headache could be related to eye strain, but it could also be a symptom of a serious medical condition such as a brain tumor or an aneurysm.
It is important to note that the history and physical examination are just the first steps in the diagnostic process. Further diagnostic tests, such as imaging studies, blood tests, and biopsies, may be needed to confirm or rule out a diagnosis.
In conclusion, the history and physical examination play an important role in diagnosing a patient's health conditions. However, it is possible that a symptom may be paired incorrectly with the body system that might produce it, and further diagnostic tests may be necessary to establish an accurate diagnosis. Health care providers should consider the patient's complete medical history, symptoms, and physical findings, as well as the results of any diagnostic tests, when making a diagnosis.
To know more about diagnosing: https://brainly.com/question/28542864
#SPJ4
Marion is about to turn 102. The death-deferral theory would predict that? A) her healthy diet will defer death for a longer period of time
B) her daily walk will defer death for a longer period of time
C) she is less likely to die immediately before her birthday
D) she will defer her death if she is surrounded by loved ones
E) she will be less likely to die if she has good health care
The death-deferral theory would predict that Her daily walk will defer death for a longer period of time.
Which of the following parenting approaches produces people who are the most socially capable and responsible?
According to research, assertive parents are more likely to raise kids who are independent, self-sufficient, and socially adept.
The "death deferral effect" was coined by Phillips to describe this tendency for people to postpone passing away just before or during significant holidays. Both a sample of California Jews and a sample of people in China who were likely to observe the Chinese Harvest Moon Festival allowed Phillips and his colleagues to duplicate this conclusion.
Learn more about socially adept:
brainly.com/question/3065499
#SPJ4
Which of the following statements regarding communication with a child is MOST correct? A. Give the child minimal information to avoid scaring him or her.B. Standing over a child often increases his or her level of anxiety.C. Most children are intrigued by strangers wearing uniforms.D. Unlike adults, children cannot see through lies or deceptions.
Option B. Standing over a child often increases his or her level of anxiety.
When communicating with a child, it is important to consider their age, development, and emotional state. Standing over a child can make them feel intimidated or threatened, which may increase their level of anxiety. Instead, it is better to approach them at their level, using a calm and friendly tone, and providing clear and simple explanations that are appropriate for their age and understanding. Children are not always able to understand complex or abstract concepts, and giving them minimal information to avoid scaring them may not always be the best approach. However, it is also important to be honest and truthful with children, as they are often perceptive and can sense when someone is not being genuine.
Learn more about anxiety here :
https://brainly.com/question/3253078
#SPJ4
a medical assistant should be aware of ______________________________ that could indicate discomfort or pain.
A medical assistant should be aware of verbal and nonverbal cues that could indicate discomfort or pain in a patient.
These cues can include expressions of pain on the patient's face, holding or rubbing the affected area, crying, grimacing, and increased agitation or restlessness. The patient may also report pain or discomfort through verbal complaints, such as complaining of a headache or stomachache. It is important for medical assistants to be attuned to these cues and respond appropriately, such as by documenting the patient's discomfort level and reporting it to the physician. Prompt recognition and management of pain can improve the patient's comfort and overall well-being, as well as assist in making an accurate diagnosis and developing an effective treatment plan.
Learn more about discomfort/pain here:
https://brainly.com/question/28238407
#SPJ4
ever since you were in school, you've had a problem with procrastination. in sales, this can be deadly. to help cope with this problem, you should
Use a variety of techniques, such as task prioritisation, management of time, dividing up activities into manageable portions, Getting rid of interruptions: Being responsible, Getting inspired, requesting aid.
The practise of delaying or postponing duties or actions is known as procrastination. It is a widespread issue that has an impact on people's life in a variety of contexts, including job, school, and personal pursuits. Lack of enthusiasm, failure fear, distractions, and low self-esteem are just a few of the causes of procrastination. Negative effects of this practise may include decreased productivity, stress, and missed chances. It's critical to pinpoint the fundamental reason of procrastination and put practical solutions in place, including work prioritisation, task segmentation, and deadline setting. In order to overcome continuous procrastination, it might also be beneficial to ask friends, family, or a therapist for support. Individuals can increase their productivity and accomplish their goals by addressing this problem and creating positive habits.
Learn more about Prioritisation here:
https://brainly.com/question/2949647
#SPJ4
what’s the real deal when it comes to nutrition research and advice?
Nutrition is an important aspect of our health and well-being, and it is essential to understand the real deal when it comes to nutrition research and advice. Unfortunately, the field of nutrition is constantly changing, and there is often conflict about what is considered healthy.
Nutrition research is a constantly evolving field, and it is important to stay up-to-date with the latest information. However, not all research is created equal, and it is important to understand the limitations and potential biases in the studies that you read. For example, some studies may have a small sample size, or they may be funded by a company with a vested interest in the results.
When it comes to nutrition advice, it is important to understand that there is no one-size-fits-all approach. Different people have different nutritional needs based on their age, gender, activity level, and health status. For example, a sedentary teenager may need fewer calories than an active adult. Additionally, different diets may work for different people, so it is important to find what works for you.
One of the biggest sources of nutrition advice is the media, but it is important to be sceptical of sensational headlines and quick-fix solutions. It is also important to be wary of fad diets, which often make unsupported claims and can be dangerous to your health. Instead, look for credible sources of information, such as registered dietitians, scientific journals, and government websites.
To learn more about nutrition here:
https://brainly.com/question/1296364#
#SPJ11
What is a characteristic of water soluble vitamins?
The characteristic of water soluble vitamins is that they are dissolved in water and readily absorbed into tissues for immediate use.
Those vitamins which could be easily and quickly dissolved in water are known as water-soluble vitamins. Vitamins are nutrients that the body requires in little quantities to function properly and remain healthy. Water-soluble vitamins are transported to the tissues of the body however they are not retained there.
Vitamins that dissolve in water and are easily absorbed into tissues for immediate use are known as water-soluble vitamins. Urine is promptly excreted of any excess. Water-soluble vitamins must be replaced periodically through your diet since this body cannot store them.
To learn more about water soluble vitamins here
brainly.com/question/13146275
#SPJ4
why is health fraud dangerous for people’s health?
Health fraud scams refer to products that claim to prevent, treat, or cure diseases or other health conditions, but are not proven safe and effective for those uses. Health fraud scams waste money and can lead to delays in getting proper diagnosis and treatment. They can also cause serious or even fatal injuries.
TRUE/FALSE. the effects of tobacco use on society include high taxes and loss of life.
Answer:True
Explanation: I took the test
Answer:
True
Because I did it once.
what is the suspected cause of eczema and psoriasis?
The suspected causes of eczema and psoriasis are Genetics, Environment or Autoimmune. It is basically caused by a combination of all of them.
Psoriasis is a type of skin disease which causes a rash with itchy, scaly patches, most prominently on the knees, elbows, trunk and scalp. Psoriasis is a very common, long-term (chronic) disease and had no cure. It can be very painful, can interfere with sleep and make it hard to concentrate.
Atopic dermatitis (eczema) is a type of condition which causes dry, itchy and inflamed skin. It is very common in young children but it can also occur at any age. Atopic dermatitis is long lasting (chronic) in nature and it tends to flare sometimes. It can also be irritating but it's not contagious at all.
To know more about diseases refer to-
brainly.com/question/8611708#
#SPJ4
cognitive psychologists commonly think of the mind as being:
Cognitive psychologists commonly think of the mind as being an information processing system, in much the same way that a computer takes in information and follows a program to produce an output.
The information processing method is predicated on several premises, including the following: information provided by the environment is processed by a variety of processing systems (such as attention, perception, and short-term memory); these processing systems modify or alter the information in systematic ways; the goal of study is to identify the processes and structures that underpin cognitive performance; therefore, human and computer information processing is comparable. Artificial intelligence, cognitive neuropsychology, and social learning theory are a few examples of how cognitive psychology has affected and combined with many other methodologies and fields of research.
To learn more about Cognitive from the given link: https://brainly.com/question/28147250
#SPJ4
The complete question is:
Cognitive psychologists commonly think of the mind as being:
A. A Turing Machine
B. A form of artificial intelligence
C. An information processing system
D. Solitary, poor, nasty, brutish, and short
What causes progressive memory loss?
Answer:
Alzheimers or dementia!
Explanation:
Provide an acidic or basic environment to optimize digestion.
The optimal environment for digestion in the human digestive system is slightly acidic. The stomach secretes hydrochloric acid, which helps to break down food and create an acidic environment with a pH of 1 to 2. This acidic environment is essential for the activation of pepsin, the main enzyme responsible for breaking down proteins in the stomach. In addition, the acidic environment helps to kill any harmful bacteria that may have been ingested with the food. Overall, having a slightly acidic environment in the stomach is crucial for efficient digestion and the breakdown of food into smaller, absorbable components.
For digestive enzymes to work well, a pH of 6.8 to 7.2 that is only slightly acidic is ideal. This is so that most digestive enzymes, which evolved to function best in this pH range around the pH of the stomach, may function most effectively. It is crucial to maintain an acidic environment to promote digestion because a basic or neutral environment may interfere with the functioning of digestive enzymes.
In an acidic environment, digestion in humans is at its best. The production of hydrochloric acid by the stomach results in an environment that is acidic and aids in the breakdown of food and the activation of digestive enzymes. Additionally, the acidic environment aids in the destruction of potentially harmful bacteria in the food. However, it's crucial to keep the stomach's acidity in check because too much acid can cause digestive issues like heartburn and ulcers.
Learn more about digestion here :
brainly.com/question/30534145
#SPJ4
underage drinking is dangerous for which of the following reasons? (select all that apply.)
underage drinking is dangerous for A. Impaired judgement, B. Increased risk of accidents and injury, and C. Interference with brain development.
Underage drinking is dangerous for multiple reasons. Firstly, can impair judgement, leading to risky behavior and decision-making. Lastly, it can interfere with the normal development of the brain, particularly in areas that control judgment, reasoning, and decision-making. This can have long-lasting effects on and behavioral development. Impaired judgement, Increased risk of accidents and injury, and Interference with brain development. Additionally, underage drinking can increase the risk of chronic health problems, such as liver disease, cardiovascular disease, and various types of cancer .Increased risk of chronic health problems. interfere with the normal development of the brain.underage drinking is dangerous.
underage drinking is dangerous for which of the following reasons? (select all that apply.)
A. Impaired judgement.
B. Increased risk of accidents and injury.
C. Interference with brain development.
D. Increased risk of chronic health problems.
Learn more about Impair judgement here:
https://brainly.com/question/11370748
#SPJ4
does salt increase specific gravity urine
Salt can increase the specific gravity of urine. Specific gravity is a measure of the concentration of solutes, or substances dissolved in a fluid, in this case urine.
Sodium chloride, commonly known as table salt, is an electrolyte that can contribute to the concentration of solutes in urine. When the body takes in more salt than it needs, it will hold onto extra water to balance the electrolyte levels in the blood, which can result in a higher volume of urine with a higher concentration of solutes and thus a higher specific gravity. However, it is important to note that many other factors, such as hydration levels, can also affect the specific gravity of urine, and it should not be used as the sole indicator of a person's health.
Learn more about concentration here:
https://brainly.com/question/10725862
#SPJ4
What are the connections between evidence-based practice and nursing research? (select all the apply).?A)Evidence-based care cannot be provided to patients without the nurse understanding something of research.B)A synthesis of current research within an area of nursing is used to improve care in that area.C)All patients with a given diagnosis should be cared for based solely on research knowledge.D)Nursing diagnosis and management depend on a practitioner’s exploration of best research evidence.
The connections between evidence-based practice and nursing research is option A) Evidence-based care cannot be provided to patients without the nurse understanding something of research.
Despite looking like a no-brainer, the concept has been met with opposition; some claim that the outcomes of evidence-based practise may not be as individualised as with older methods. The objective is to immediately integrate the most up-to-date research, clinical knowledge, and patient preferences into clinical practise so that nurses may make knowledgeable decisions about patient care.
Research in nursing is evidence-based and utilised to support nursing practises. Since Florence Nightingale's time till the day, nursing has evolved into an evidence-based field of practise. Many nurses now work as researchers based in universities as well as in the healthcare setting.
To learn more about Research here
brainly.com/question/28214062
#SPJ4
TRUE/FALSE. the healthcare cost associated with the treatment of hiv/aids is generally inexpensive and fully covered by health insurance.
Answer: True
Explanation:
Joe is a Medicare participant who receives his benefits through a Managed Health Care Plan. Which Medicare plan does he have? A. Part A B. Part B C. Part C
Joe is a beneficiary of Medicare, and a managed health care program is how he obtains his benefits. He has a Medicare Part C coverage.
If you are 65 years of age or older or to have a serious handicap, Medicare is a government programme that offers health coverage regardless of your income. If you've a very low income, Medicaid is a federal and state programme that provide health care. Insurable interest is still another need for a legitimate insurance contract. An element of a legal purpose is an insurable interest. This means that upon the death, illness, or incapacity of the person being insured, the person signing the contract (the applicant) should be exposed to loss. Risk: A circumstance that raises the likelihood of loss.
Learn more about health
https://brainly.com/question/15964190
#SPJ4
cancerWhich of the following patterns of illness suggest a genetic link? A. Smokers who develop lung multiple family members C. A family member with multiple diseasesB. Appearance of the disease incancersD. an early onset of certain
Appearance of the disease in multiple family members, a family member with multiple cancers, and an early onset of certain diseases are the pattern of illness that suggest a genetic link.
Deaths from cancers are most frequently caused by lung cancer globally. The risk is greatest for current and past smokers, although lung cancer does affect nonsmokers, though at varied rates globally. It is now widely accepted that smoking cigarettes increases the chance of developing lung cancer. Despite this, less than 20% of smokers acquire lung cancer, indicating that other factors, such as individual predisposition, might alter the impact of tobacco smoke exposure. The hunt for a gene or genes linked to vulnerability is still in its early stages. After correcting for proband age, proband gender, ethnicity, education, smoking status of the proband, pack years, and study number, associations between lung cancer and genetics were discovered in almost every strata.
To learn more about genetic from the given link: https://brainly.com/question/13049663
#SPJ4
the kidneys perform all of the following functions except:
Blood-borne B cells that are responsible for producing the antibodies also carry them across the body. Since antibodies are not secreted, the kidneys carry out all other tasks. The kidney does not perform Secretion of antibodies
In maintaining homeostasis, the kidneys play numerous important tasks. A total of 1.5 litres of urine are produced by the kidneys each day after they have filtered all the blood in the body several times. By excreting more or less of them in urine, the kidneys can regulate the quantity of water, ions, and other compounds in the blood. Additionally, hormones that support homeostasis are secreted by the kidneys. When additional red blood cells are required, the kidney hormone erythropoietin induces bone marrow to make more. They also release calcitriol, the active form of vitamin D, which aids in maintaining calcium for bones, and renin, which controls blood pressure. When the body is dehydrated, the hypothalamus releases antidiuretic hormone, stimulating the kidneys to produce more concentrated urine.
To learn more about kidneys from the given link: https://brainly.com/question/29992259
#SPJ4
The complete question is:
The kidneys perform all of the following functions except:
Filtration of bloodRegulation of B.PSecretion of antibodiesRegulation of pH of body fluidsaccelerated build-up of nutrients caused by humans. a. thermal pollution b. bio-magnification c. Water pollution d. artificial Eutrophication.
Accelerated build-up of nutrients caused by humans artificial eutrophication Option (D) .
Eutrophication is the gradual enrichment of a whole body of water, or sections of it, with minerals and nutrients, typically nitrogen and phosphorus. It has also been characterized as "nutrient-induced increase in phytoplankton production". 459 Water bodies with extremely low nutrition levels are referred to as oligotrophic, whereas those with intermediate nutrient levels are referred to as mesotrophic. Advanced eutrophication is also known as dystrophic and hypertrophic situations.
Eutrophication can have an impact on both freshwater and saltwater systems. Excess phosphorus is nearly often the culprit in freshwater environments.
Learn more about Eutrophication
https://brainly.com/question/13232104
#SPJ4
TRUE/FALSE. modifying your personal action plan can impede personal fitness goals.
Answer:
fasle
Explanation:
. determine the location xq of the centroid of the solid made from a hemisphere, cylinder, and cone.
The centroid of a solid is found by taking the weighted average of its smaller parts' locations.
To find the centroid of a solid made of a hemisphere, cylinder, and cone, first determine the volume and centroid of each individual part, then calculate the weighted average. The weighted average is calculated as follows:
(V 1 * x 1 + V 2 * x 2 +... + V n * x n) / (V 1 + V 2 +... + V n)
where V i denotes the volume of the i-th part, x i denotes the location of its centroid, and n denotes the total number of parts.
To Learn More About volume Click
https://brainly.com/question/15861918
#SPJ4
some states in the u.s. have both medical examiners and coroner systems, not just one of the other.a.true b.false
True. In some states, such as Virginia, a hybrid system is used that combines both medical examiners and coroners.
In these states, medical examiners are responsible for death investigations in the urban areas while coroners are responsible for death investigations in the rural areas.
Other states such as New York, Massachusetts, and Florida rely solely on medical examiner systems, while still other states, such as Texas and California, rely on coroner systems. Medical examiner systems involve a trained physician to conduct autopsies and investigations, but they are typically more expensive to operate and require more resources.
Coroner systems are usually cheaper to operate, but the investigators may not have specialized medical training. Ultimately, the decision to use one system or the other depends on the resources available in the state or local area.
To learn more about physician visit:
https://brainly.com/question/925545
#SPJ4
the reason to prevent backflow in kitchen equipment is to:
Preventing backflow in kitchen equipment is an important aspect of maintaining the safety and hygiene of the water supply.
The basic principle behind backflow prevention is to prevent contaminants from flowing back into the water supply, which can occur under certain conditions such as a drop in water pressure. Backflow can occur in kitchen equipment due to a variety of reasons, including poor plumbing practices, leaks, and cross-connections. For example, when water is flowing out of a sink or dishwasher, the pressure can drop, allowing contaminated water from the equipment to flow back into the main water supply. If this water contains harmful substances, such as chemicals, pesticides, or biological contaminants, it can pose a serious threat to public health. To prevent backflow in kitchen equipment, a backflow preventer is typically installed in the plumbing system. This device is designed to prevent water from flowing back into the water supply, even if the water pressure drops. There are several types of backflow preventers available, including atmospheric, pressure, and vacuum breakers. These devices work by either breaking the water flow or creating a physical barrier to prevent backflow. In addition to protecting the public health and safety, backflow prevention is also required by local building codes and health departments. This is because backflow prevention is considered an important part of maintaining the integrity of the public water supply, which is a critical infrastructure for communities.
Learn more about pesticides here :
https://brainly.com/question/24316938
#SPJ4
Which action should the nurse implement to reduce the risk of vesicant extravasation in the client who is receiving intravenous chemotherapy?
To lessen the risk for vesicant extravasation inside the client receiving intravenous chemotherapy, this same nurse should stop administering IV fluids right once and disconnect the IV tubing from the cannula.
Describe chemotherapy.Chemotherapy is a medicinal treatment that uses potent chemicals to kill your body's rapidly proliferating cells. Chemotherapy is most frequently used to treat cancer because cancerous cells reproduce and develop considerably quicker aggressively than for the majority of body cells.
When does chemotherapy begin treating cancer?For stage 4 malignancies, systemic pharmacological therapies including chemotherapeutic agents or targeted therapy are frequently used. A clinical trial that offers novel therapies to aid in the chemotherapy of stage 4 cancer is frequently a possibility. Chemotherapy medications come in a wide variety.
To know more about chemotherapy visit:
https://brainly.com/question/29490478
#SPJ4
Write at least three things that are in your Can Do Circle and three things that are in your Not Yet Circle. You can include dreams, goals, or challenges in your Not Yet Circle
Can do circle and not yet circle is given below.
What is circle?Circle in health is a concept that promotes a holistic, collaborative approach to healthcare. It emphasizes the importance of the patient’s voice and encourages healthcare providers to work together to provide better care. Circle in health is based on the idea that patient-centered care is the key to quality health outcomes. This approach focuses on involving the patient in the decision-making process, developing a comprehensive plan of care, and actively engaging with all stakeholders. Ultimately, circle in health is an approach that values the individual’s autonomy, empowers them to make informed decisions, and provides them with the resources they need to achieve the best outcomes.
CAN DO CIRCLE
1. I can practice self-care and take care of my mental and physical health.
2. I can stay motivated and dedicated to achieving my goals.
3. I can take responsibility for my own decisions and how they affect my life.
NOT YET CIRCLE
1. I have not yet found a job that I am passionate about.
2. I have not yet been able to travel to my dream destination.
3. I have not yet been able to save enough money for my long-term financial security.
To know more about circle click-
https://brainly.com/question/27961297
#SPJ1
What is a common condition that affects the muscular system?
The common conditions that affects muscular system are cramps, injury due to heavy weight/accident, pain due to inappropriate sitting/ sleeping position etc.
Muscular system refers to the arrangement of bones, muscles and ligaments of our body which are present over the organ system and are designed in a way that it allows movement, flexibility and even space for storing the vital systems inside the body. The muscular system is affected mainly due to inappropriate movements/ postures which causes pain/ swelling in a specific portion. Muscle system is made of cardiac, skeletal and smooth muscles. There are many muscle related disorders which occur due to age, mineral degradation and weakness due to accident which causes muscles to tear apart or break. Some examples are muscular dystrophy, Myasthenia gravis and Myopathy.
Learn more about muscular system at:
brainly.com/question/30345629
#SPJ4
medicare part b claims are adjudicated in a/an_____manner
Answer: Non-real time
Explanation:
Medicare Part B claims are adjudicated in an administrative manner. This means that the claims are processed and reviewed by Medicare Administrative Contractors (MACs) for payment purposes.
The Medicare Administrative Contractors are responsible for determining the amount that Medicare will pay for each claim based on Medicare policies and guidelines. This process involves verifying the accuracy of the claim, checking for any duplicates, and making sure that all services and supplies are medically necessary and covered under Medicare Part B. If a claim is denied, the healthcare provider or patient has the right to appeal the decision. Overall, the administrative adjudication of Medicare Part B claims helps to ensure that taxpayer dollars are being used appropriately and efficiently.
Learn more about Medicare here:
https://brainly.com/question/1960701
#SPJ4
which of the following statements regarding a 3-month-old infant is correct
A baby as young as three months old can tell a parent from an unfamiliar person. So the 4rth option is correct.
Infants frequently sneeze, yawn, spit up, burp, gurgle, hiccup, and sneeze. Sometimes infants cry for no apparent reason. Try rocking, singing, chatting gently, or covering your baby with a blanket to soothe him or her if this happens. Your baby's cries will eventually reveal what the infant needs.
It's possible that you can't constantly provide your baby comfort. Your fault is not in this. Attempt to be calm and patient when your infant won't stop crying. Allow someone else to watch your infant if required while you take a break. In no case you should shake your infant.
Learn more about infants here:
https://brainly.com/question/11640225
#SPJ4
The complete question is:
Which of the following statements regarding a 3-month-old infant is correct?
The baby can't swivel his or her head or concentrate.
It should be simple to wake up a sleeping baby.
At this age, the infant normally naps for up to eight hours each day.
A baby that is three months old can tell a parent from a stranger.