U.S. doctors online nowAsk doctors free
A 42-year-old member asked:

i haven't slept in two days. what would happen if i kept going without sleep?

2 doctor answers2 doctors weighed in
Dr. Robert Ryan
Dentistry 50 years experience
Many things: Mental acuity and alertness would diminish, making driving risky. Your immune system will become depleted. Depression can become prominent. Cardiac stress will increase from being vertical for long periods.Vein distension in the lower extremities may become a problem. Many health disorders arise from lack of sleep.
Dr. Heidi Fowler
Psychiatry 25 years experience
Sleep deprivation: Sleep deprivation can ^ risk for fatigue, irritability, v concentration, diminished memory, ^ infection rate, ability to tolerate stressors, blurring of vision, v energy level, ^ micro-sleeps, weight gain, exacerbation of psychiatric problems and can even lead to psychosis.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month

Similar questions

CA
A 24-year-old member asked:

During the day I just drop off in a sleep for 3-4 minutes then wake up. What is this called?

2 doctor answers5 doctors weighed in
Dr. Shaym Puppala
Internal Medicine 25 years experience
Maybe narcolepsy: If you are falling asleep unexpectedly, could be narcolepsy. Narcoleptic symptoms can also be part of other problems such as obstructive sleep apnea or sleep deprivation from other causes. If you are getting enough hours of sleep, best to get checked; obstructive sleep apnea has a multitude of preventable bad effects over time.
San Francisco, California
A 11-year-old female asked:

For me, it is always very hard to wake up, even sleeping during 8 hours. How could I wake up and be immediately excited for the day?

2 doctor answers5 doctors weighed in
Dr. Chris Oh
Dr. Chris Oh answered
Internal Medicine 21 years experience
Try coffee!: Recent studies show that coffee has anti-oxidant and anti-inflammatory properties and are therefore good for you. Studies also show people who drink coffee have more energy, are less depressed and find it easier to lose weight. I need my 2 cups in the morning !
Dr. Chris Oh
Dr. Chris Oh commented
Internal Medicine 21 years experience
Provided original answer
Perhaps you are depressed?
Jan 6, 2012
A 18-year-old member asked:

I get a good amount of sleep each night normally, I do excersize during the day and eat healthily - why am I always so tired?

2 doctor answers4 doctors weighed in
Dr. Danny Proffitt
Family Medicine 43 years experience
Depends: I don't know your age or overall health, but it seems you are basically healthy. There are a few things you should consider. One, is a test for your thyroid funciton. A simple blood test could give you the answer. Medications? These can do the same. Do you snore? Sleep apnea can be insidious! i would suggest a good check up, some labs and hopefully some reassurance and continue exercising.
A 54-year-old member asked:

I sleep for 7 hours each night. I need to sleep another few hours during the day. Is this normal? This is a recent problem.

1 doctor answer3 doctors weighed in
Dr. Joyce Vrabec
Internal Medicine 26 years experience
Sleep: No this is not normal. Are you taking any meds that could have this as a side effect? Do you snore, perhaps you have sleep apnea. This needs to be discussed with your physician soon.
A 33-year-old member asked:

What can you do to decrease sleeping time to only 4 - 5 hours a day?

1 doctor answer1 doctor weighed in
Dr. K. Olson
Dr. K. Olson answered
Psychiatry 39 years experience
Common question: Typically it requires spending less time in the bedroom. Only visit it when you have an iirresistible urge to fall asleep. Unless sleep is not restful, you can get up at first awakening. Many only need only 6 hour per night. The key is it restful.

90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more. Get help now:

Ask doctors free
Personalized answers
Free
Talk to a doctor
24/7 visits
$15 per month
Last updated Jun 11, 2019
Connect with a U.S. board-certified doctor by text or video anytime, anywhere.
24/7 visits
$15 per month

Disclaimer:

Content on HealthTap (including answers) should not be used for medical advice, diagnosis, or treatment, and interactions on HealthTap do not create a doctor-patient relationship. Never disregard or delay professional medical advice in person because of anything on HealthTap. Call your doctor or 911 if you think you may have a medical emergency.