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Human Anatomy and Physiology

Sleep and Circadian Rhythm

Sleep is an innate human need, which typically occurs for several hours at one time or more than one time during a circadian rhythm. Sleep varies from a few hours to over 8 hours, with babies and children requiring the most sleep. During sleep, the eyes close, muscles relax, nervous system reduces, and the body enters a different consciousness. Many health conditions and environmental factors can interrupt both sleep and awakening.

Alberta Schmitt asked in Sleep and Circadian Rhythm, Brain, Idioms, Cliches, and Slang

Does "sleeping on it" improve decision making?

Although the science isn't completely conclusive, recent research suggests that sleep can, in fact, improve problem solving. A 2018 study from the University of Bristol looked at a group's performance on mental tasks before and after taking a 90 minute nap. When compared with a group that stayed awake for the same amount of time, the nappers did markedly better on their repeated task, which indicated to the researchers that the brain did process some of...
Margaret Ruecker asked in Sleep and Circadian Rhythm, Health

Why does oversleeping make me feel tired?

Assuming oversleeping isn't a chronic issue, the fatigue you experience after sleeping in likely has to do with the disruption of your sleep cycle. Internal and external factors work to set your sleep cycle (or circadian rhythm), and when you break that rhythm, you're left feeling tired and out of whack. You should also consider your recent sleep history—if you're in "sleep debt," a one-night sleep explosion to get you square with the sleep bank...
Asked in Tea, Sleep and Circadian Rhythm

Can tea make you sleepy?

For most people no, but some people have some "reverse" reaction to the caffeine (I have one friend that does). Also some herbal teas that contain no caffeine do contain components that can induce sleepiness. ...
Asked in Women's Health, Menstruation, Sleep and Circadian Rhythm

What can I do if I end up staining the bed at night during periods?

You should get good pads that have superior absorption capability as well as are thick enough. You should try differing brands of sanitary pads and seek out best advice on their retention. ...
Asked in Health, Human Behavior, Sleep and Circadian Rhythm

What are some reasons that not enough sleep is not healthy for you?

Your body repairs itself while you are sleeping, so in depriving yourself of enough sleep and rest, you are aging yourself. Diseases such as diabetes and obesity are often the result of lack of deep sleep, due to sleep apnea, restless legs or other condition. Following a regular sleep pattern that allows you to feel energetic and rested the next day is best. ...
Asked in Sleep and Circadian Rhythm

How many hours of sleep a day do teens need?

Kids and teens should try to get 8-10 hours of sleep a night.
Asked in Sleep and Circadian Rhythm

Why do some people never get tired?

The amount of sleep needed varies depending on the person. But if the person in question really never gets tired, they should consult a doctor. ...
Asked in Child Health, Sleep and Circadian Rhythm

When should 7 year olds go to bed?

A rough estimate is their age or age plus 30 minutes. So 7 year old in bed between 7-7:30. Remember, kids need 10-12 hours of sleep every night. ...
Asked in Sleep and Circadian Rhythm

How can you help a child sleep at night?

Here are some ways to help anyone get to sleep at night: Have a nightly routine - like brushing your teeth, taking a bath, reading a bedtime story - that you do every night. This habit will help your brain know that it's time for bed. Turn off the distractions - leave the TV and video games and cellphones in another room besides the bedroom. They're too much of a temptation for a child or teenager to have at hand. And...
Asked in Sleep and Circadian Rhythm

Why do people sleep?

Many of the reasons for sleep are still a mystery. One of the vital roles of sleep is to help us solidify and consolidate memories. Also, our bodies require long periods of sleep in order to restore and rejuvenate, to grow muscle, repair tissue, and synthesize hormones. We sleep because our brain needs to release stress and process memories. Also sleep slows down our heart rate and gives the body a chance to rest. Without sleep a human can have psychological problems. ...
Asked in Pregnancy, First Trimester, Sleep and Circadian Rhythm

What is the best sleep position?

The ideal way to sleep, according to most experts, is on one's back without a pillow. For pregnant women, the ideal sleeping position is on their left side. ...
Asked in Health, Sleep and Circadian Rhythm

How long does the average male sleep?

The daily recommended sleep required for a adult male is 8 hours a night. In Western society, with things such as lifestyle and job commitments, the average adult male sleeps roughly 6 to 7 hours a night. In poorer nations where there are less rules and regulations facing employees and working hours, the average adult male can sleep as little as 2 to 3 hours a night in order to meet his required monthly income. ...
Asked in Health, Sleep and Circadian Rhythm

Why is it you feel cold when you wake up in the morning?

The body's temperature LOWERS slightly during sleep. Actually, body temperature goes down at night generally speaking. The body is able to regulate body temperature between 96.8 and 100.4 degrees Fahrenheit. (When temperature goes outside of these bounds, it is not because of healthy body functioning -- it means you are sick or have hypo- or hyperthermia from environmental conditions.) To begin with, the suprachiasmatic nucleus in the brain is like the body's internal clock. The suprachiasmatic nucleus reacts to changes in light. So...
Asked in Sleep and Circadian Rhythm

Why do you go to sleep?

Because we get tired. Our bodies are made that way. Sleep allows the body to rebuild and rejuvenate for the next days tasks. Cells are cleaned and replenished when you sleep. Sleep is also vital to our mental health. People who are sleep deprived become disoriented and can go insane. One of the most important tasks that take place when we sleep is the brain's organizational activities Your brain will cleanup and sort out all the events, actions, and recordings it took...