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Doctor insights on: How Much Sleep Can You Lose Without Throwing Off Your Circadian Rhythm

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How much sleep can you lose without throwing off your circadian rhythm?

How much sleep can you lose without throwing off your circadian rhythm?

irrelevant: Sleep loss and circadian rhythm are unrelated in some ways. If you loose sleep you loose sleep and this will not affect the rhythm . If you affect the rhythm by phase shift usually you loose sleep as well. ...Read more

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Rhythm (Definition)

Rhythm "any regular recurring motion, symmetry may be generally defined as a movement marked by the regulated succession of strong and weak elements, or of opposite or different conditions, this general meaning of regular recurrence or pattern in time may be applied to a wide variety of cyclical natural phenomena having a periodicity or frequency of anything microseconds ...Read more


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Can running while sleep deprived do damage to your heart?

Can running while sleep deprived do damage to your heart?

Sleep deprivation: As far as i know there is no controlled study of the physiology of sleep deprivation to answer that question. Why would one want to run when sleep deprived instead of sleep. ...Read more

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How much caffiene do you need to stay awake through the night?

How much caffiene do you need to stay awake through the night?

It depends: The amount of caffeine needed to stay awake all night depends on many things. The amount of sleep you have had recently plays a large role. Your bodyweight and other medication also are factors as well as your age. There is no easy answer. ...Read more

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Delayed sleep problem from a long time. Sleep after 2am and wake up after 8-9hrs of sleep.. need to change it.. How do I reset circadian rythm?

Delayed sleep problem from a long time. Sleep after 2am and wake up after 8-9hrs of sleep.. need to change it.. How do I reset circadian rythm?

Reduce all stimuli: it is important to follow a sleep hygiene routine every night by going to bed at a certain hour and cut back caffein or other stimulants in the afternoon and evening hours. The 8-9 hours sleep is a good length of sleep time in general. you can also try taking melatonin and see if it helps. If none of these measures help, you should see a sleep specialist. Best Wishes, Mali Mann ...Read more

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Can stress cause you to stay wake, and lose sleep?

Can stress cause you to stay wake, and lose sleep?

Yes: Yes, many who are stressed can experience insomnia or other sleep intrusions. Try stress management techniques such as meditation, yoga, deep relaxed breathing, counseling, and getting regular physical activity. ...Read more

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Is it safe to fast 8 hours before sleep and 8 hours while asleep to reset circadian rhythm? I'm seemingly healthy, but can blood sugar go too low etc?

Is it safe to fast 8 hours before sleep and 8 hours while asleep to reset circadian rhythm? I'm seemingly healthy, but can blood sugar go too low etc?

Difficult,: but probably safe. Unless you have a diagnosed blood sugar defect such as diabetes or hypoglycemia your blood sugar regulation can manage regular prolonged fasts. There is, in fact, quite a bit of convincing data that calorie restriction and intermittent fasting can have notable health benefits including longevity. Keep drinking water. Cravings and grumblings ease after a week or two. Best wishes! ...Read more

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Waking up with arrhythmia/heart racing / sweating. Could it be sleep apnea? If so what can I do to fix it without a sleep study? I'm only 23

Waking up with arrhythmia/heart racing / sweating. Could it be sleep apnea? If so what can I do to fix it without a sleep study? I'm only 23

Sleep apnea: If you are overweight, losing weight not only reduces pressure on the airways, the tongue shrinks in size, further opening the airway. Don't sleep on your back ( sew a pocket in a t-shirt and put a tennis ball in it ). See an ENT to make sure that there isn't a problem with deviated septum, tonsils or adenoids. Use breathe rite strips. See a dentist to have a custom sleep device made. ...Read more

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How do you teach your body to sleep without sleep aides when you already exercise, eat right and have good sleep hygiene? And I use no caffeine. ??

How do you teach your body to sleep without sleep aides when you already exercise, eat right and have good sleep hygiene? And I use no caffeine. ??

Magnesium,Relaxation: Magnesium deficiency is common & causes insomnia.Supplementing with mag. glycinate or taurate or a warm bath with epsom salts before bed can help.See http://bit.ly/1dpAi09. Relaxation techniques can be helpful- see http://bit.ly/1w73BeJ & http://bit.ly/1jGRrm3.Search "sleep relaxation" on youtube for guided meditations & music. Many sleep better if they turn off wi-fi! See http://bit.ly/1igRs4g ...Read more

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How can you exactly burn calories in your sleep?

How can you exactly burn calories in your sleep?

Living=calories: We all burn calories all the time (as long as we stay alive) we do burn more calories with activity it's not possible to do something differently so that you increase the calories you burn in your sleep (other than having restless sleep, which is not healthy) i hope this helps! ...Read more

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How do you change your body's circadian rhythm by a few hours?

How do you change your body's circadian rhythm by a few hours?

Slowly: You can change you wake sleep pattern slowly. If you have trouble falling asleep melatonin may help. I prefer the sublingual that goes under the tongue because the timing of the effect is more consistent. 1-3 mg is a usual starting dose. ...Read more

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I want to get off ambien (zolpidem). How many nights does it take to get back to my natural sleeping rhythm?

I want to get off ambien (zolpidem). How many nights does it take to get back to my natural sleeping rhythm?

Use sleep hygiene: Getting off Ambien (zolpidem) is a good idea and best facilitated by practicing good sleep hygiene. This includes setting the same sleep and wake time, relaxing before sleep, using your bed only for sleep and sex, no tv or computer before sleep, no caffeine 6 hours before sleep, and getting out bed if you wake in the middle of the night and reading for a little while. Practicing this will help. ...Read more

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How can you avoid gaining weight you lost on Vyvanse/amphetamines once you stop?Aside from suppressing appetite they DO increase Basal Metabolic Rate

How can you avoid gaining weight you lost on Vyvanse/amphetamines once you stop?Aside from suppressing appetite they DO increase Basal Metabolic Rate

Rebound weight gain: It is not unusual to experience wight gain after discontinuation of Vyvanse (lisdexamfetamine) or other stimulants due to rebound increase in appetite. If not kept in check, it can lead to weight gain, as would be expected. It does not increase BMR, as is commonly believed. The best way to maintain weight is to monitor calorie intake and activity level. This can be achieved with mindful eating and regular exercise. ...Read more

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How to lose weight without starving yourself and eating regularly? I get as about an hour of exercise each day and nothing seems to work.

How to lose weight without starving yourself and eating regularly? I get as about an hour of exercise each day and nothing seems to work.

On Right Track: Be patient. Excercise is an important part of a weight loss strategy. Once hour a day is great! however, you still need to restrict your total calorie intake. It is important to eat several small meals during the day. Hang in there. ...Read more

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Fastest way to loose weight without exercising. Too busy with work and dont have the time?

Fastest way to loose weight without exercising.  Too busy with work and dont have the time?

Food plan: low carb and higher protein is healthy and a good way to loose weight. There are good carbs and bad carbs. Good carbs basically include vegetables and bad carbs include junk food. Congrats and continued health. Don't forget that eggs, including the yolks, are god for you. Check w/doc first. "Disease Proof" book by David Katz, MD, has a good overall plan of action to keep you on track. ...Read more

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How can I fall asleep faster and sleep better without exersing? (I arrive home from work at 10-10:30 pm) thank you

How can I fall asleep faster and sleep better without exersing? (I arrive home from work at 10-10:30 pm) thank you

Sleep Hygiene is Key: Retire & rise same time each day. Keep bedroom dark & cool & use only for sex & sleep. Turn off tv. No naps. Exercise regularly but not in late evening. No caffeine for 6 hrs & no alcohol or tobacco w/i 2 hrs of sleep. Keep dinner moderate sized & finish at least 2 to 3 hrs before sleep. Can try warm milk, chamomile tea or melatonin along w light reading, warm bath or lavender scent. ...Read more

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How many hours before you go to bed is it safe to exercise without it negatively affecting sleep?

How many hours before you go to bed is it safe to exercise without it negatively affecting sleep?

A couple of hours: Generally your body needs an hour or two after exercise to achieve enough relaxation to attain sleep easily. Some of that relates to needing a small "meal" that includes protein and carbohydrates so that your muscles will build and recovery the best. The amount of time also depends on how vigorous and how long the exercise session was - the more intense, the more time needed before sleep. ...Read more

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Gain weight to fast, feel lazy all the time, no energy, out of breath, can't lose weight what can I do?

Gain weight to fast, feel lazy all the time, no energy, out of breath, can't lose weight what can I do?

Check thyroid etc: You need a physical exam and some lab work to determine if you have a thyroid, heart, or other problem causing these symptoms. Don't delay! ...Read more

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How much sleep can you lose without throwing off your circadian rhythm?

irrelevant: Sleep loss and circadian rhythm are unrelated in some ways. If you loose sleep you loose sleep and this will not affect the rhythm . If you affect the rhythm by phase shift usually you loose sleep as well. ...Read more

See 1 more doctor answer
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Is it ok that i always sleep at 2am and wake at 8am-9:30am? Does it affect my circadian rhythm badly?

Is it ok that i always sleep at 2am and wake at 8am-9:30am? Does it affect my circadian rhythm badly?

Sleep: If it is not causing distress or affecting your life or work or causing symptoms you should be fine, you are getting enough hours of sleep. ...Read more

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What is the healthiest time to wake up and go to sleep based on circadian rhythm?

What is the healthiest time to wake up and go to sleep based on circadian rhythm?

Routine: I don't think it matters as long as you have a regular bedtime and are sleeping well. You should wake up the same time every day even on weekends. Hopefully you are not disturbed during sleep by children, friends, noise etc. Not a good idea to have a tv in the bedroom. Not a good idea to read in bed. Young people need 8 to 9 hours of sleep every day. ...Read more

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What is the healthiest time to wake up and go to sleep based off your circadian rhythm?

What is the healthiest time to wake up and go to sleep based off your circadian rhythm?

No best time: There is not best time to go to sleep or wake up. It all depends on you & if your schedule. What does matter is if you are getting the proper amount of good quality sleep. The average amount of sleep is usually 6-8hr or more if you are a teen. Many say that is good to get on a consistent sleep schedule rather than sleeping 12hours on the weekend and only 5 during the week. ...Read more

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What are circadian rhythm sleep disorders? Examples?

What are circadian rhythm sleep disorders? Examples?

Sleep phase disorder: Circadian Rhythm Sleep Disorders can occur for a number of reasons, and can best be assessed initially by a Psychologist or Physician expert in sleep disorders. A sleep study is usually ordered if the Doc believes it is a true Circadian Rhythm disorder as opposed to sleep habits. Don't let it go, sleep is a central component to overall health and emotional health. ...Read more

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I have a non-24 hour circadian rhythm (26 hour cycle), how should I take my sleep medicine to fix this?

I have a non-24 hour circadian rhythm (26 hour cycle), how should I take my sleep medicine to fix this?

What r u taking?: In most people, the circadian rhythm is slightly longer than 24hrs. Non 24 hr sleep wake syndrome occurs most commonly in blind people who are not able to use light cues to adjust to light/darkness changes. Non pharmacological interventions are often used. Melatonin is not fda approved but is commonly used. It is taken about 2 hrs before the desired sleep time. ...Read more

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What are circadian rhythm sleep disorders related to sleep paralysis and nightmares?

What are circadian rhythm sleep disorders related to sleep paralysis and nightmares?

Sleep disorders: Sleep phase disorders may need to be diagnosed via sleep study and usually require really expert coaching to correct. Nightmares and often also sleep paralysis can easily be addressed with my No More Nightmares training. Please contact me if you request further details. ...Read more

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Is shift work sleep disorder the same thing as circadian rhythm disorder?

Is shift work sleep disorder the same thing as circadian rhythm disorder?

One type of: Circadian rhythm sleep disorder is a persistent or recurring pattern of sleep disruption resulting either from an altered sleep-wake schedule or an inequality between a person's natural sleep-wake cycle and the sleep-related demands placed on him or her. the dsm-iv-tr lists four types of circadian rhythm sleep disorder: delayed sleep phase type, jet lag type, shift work type, and unspecified type. ...Read more

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What are some reasons for hypersomnia, other than sleep apnea and messed up circadian rhythm?

What are some reasons for hypersomnia, other than sleep apnea and messed up circadian rhythm?

2 stand out: Hypersomnolence can be a reaction to many prescription and over-the-counter medications (including the ones you've listed) as well as some supplements. Depression is a common cause. Hyoscyamine/imodium are drugs used together to treat irritable bowel syndrome (often associated with depression ; anxiety disorders). Other medical conditions can cause this too so get it checked out. ...Read more

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Have had trouble sleeping over the last few months. Been paying special attention. What is a circadian rhythm?

Have had trouble sleeping over the last few months. Been paying special attention. What is a circadian rhythm?

Circadian Rhythm: Is the sleep/wake cycle. When that gets thrown off for biological, psychological, or lifestyle reasons we experience sleep problems. Your doc can help by doing a 4 point cortisol tests (diagnostechs lab - saliva) to see your levels day and night. Natural and/or drug therapy can help. ...Read more

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Having circadian rhythm disorder since past 5 years. Sleeping pattern always messes up. What holistic supplements can be used to address this?

Having circadian rhythm disorder since past 5 years. Sleeping pattern always messes up. What holistic supplements can be used to address this?

Neurotransmitter: lab test from NeuroScience lab www.neurorelief.com may prove helpful. They provide supplement formulas to address any imbalances found. Peace and good health. ...Read more

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Shift work sleep disorder, or circadian rhythm sleep disorder--how do I know difference?

Shift work sleep disorder, or circadian rhythm sleep disorder--how do I know difference?

One type of: Circadian rhythm sleep disorder is a persistent or recurring pattern of sleep disruption resulting either from an altered sleep-wake schedule or an inequality between a person's natural sleep-wake cycle and the sleep-related demands placed on him or her. the dsm-iv-tr lists four types of circadian rhythm sleep disorder: delayed sleep phase type, jet lag type, shift work type, and unspecified type. ...Read more

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Is it safe to fast 8 hours before sleep and 8 hours while asleep to reset circadian rhythm? I'm seemingly healthy, but can blood sugar go too low etc?

Difficult,: but probably safe. Unless you have a diagnosed blood sugar defect such as diabetes or hypoglycemia your blood sugar regulation can manage regular prolonged fasts. There is, in fact, quite a bit of convincing data that calorie restriction and intermittent fasting can have notable health benefits including longevity. Keep drinking water. Cravings and grumblings ease after a week or two. Best wishes! ...Read more

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Is there a special light to help the total blind to be able to use to improve the circadian rhythm and to resolve the sleep disorder?

It depends: blue light seems to be best to help entrain circadian phase, however the use of light partially is dependent upon how receptive you are to light. There have been studies where light was still shown to help improve circadian rhythm in blind individuals, so it is still worth a try to see if it helps. ...Read more

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To sun lamps help with circadian rhythm disorder?

To sun lamps help with circadian rhythm disorder?

They do: I've been practicing medicine in the midwest for 23 years. Between october and march, we may get 2-3 minutes worth of sun in 6 months. Vitamind deficiency is scarily common here, so anything that can safely provide light therapy without increasing skin damage i strongly recommend.Sorry, i might have exaggerated a bit on the midwest sunlight thing. We get 10 minutes... ...Read more

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How does travel change your body's circadian rhythm?

Time change: Time change and when it gets lights and dark affect your circadian rhythm. Body is responding to light and dark cues so when people travel those clues are given at "incorrect" time. Your body doesnot kow what to expect until it adapts over a few days. In general expect about 1-2 days for every hour of time difference. ...Read more

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How do you use a sun lamp for a circadian rhythm disorder?

Morning: It must be full spectrum white light. These are expensive. Used for "winter blues", technically known as seasonal adaptive disorder causing depression. Exposure to this light for about 2 hours at sunrise is often curative. The incas used to lie down at sunrise to expose themselves to the sun as part of their health program. ...Read more

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Can you tell me how to re-set my circadian rhythm?

Can you tell me how to re-set my circadian rhythm?

Exercise in day: One of the best ways to reset your circadian rhythm (e.g. after jet-lag or shift work), is to make sure you exercise, at least 15 minutes during the daylight. Ideally >6 hours before bed time. Also, wake up at your desired time, don't take naps, and avoid caffeine 6-8 hours before bedtime. Avoid T.V. in bedroom, to prevent insomnia. ...Read more

Dr. Vikas Jain
832 doctors shared insights

Circadian Rhythm (Definition)

The circadian rhythm (biological clock) is the daily cycle of physical and mental activity in the body, based on a 24-hour period. The circadian rhythm helps regulate a person's sleep/wake cycle, and is affected by variations in the environment, such as the amount of daylight, the length of the night, the ...Read more


Dr. Heidi Fowler
5,033 doctors shared insights

Sleep (Definition)

Sleep is a topic that involves concepts such as how long it takes to fall asleep, how many times one wakes up at night, how many hours one sleeps at night, sleep stages, ...Read more