Common "Circadian Rhythm" queries answered by top doctors | iCliniq

Circadian Rhythm

A circadian rhythm, also known as the circadian cycle, is a natural internal process that helps to regulate the sleep-wake cycle, and it repeats roughly every 24 hours. A circadian clock drives this 24-hour rhythm, and it is widely observed in animals, plants, fungi, and cyanobacteria.

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All the answers published in this website are written by verified medical doctors, therapists and health experts. The Content has been moderated by iCliniq medical review team before publication. Post your medical clarifications on iCliniq by choosing the right specialty and get them answered. Your medical queries will be answered 24/7 by top doctors from iCliniq.

Why am I so tired during day but cannot sleep at night?

Query: Hello doctor, I have trouble sleeping, but when I do get the chance to sleep I often wake up still feeling exhausted. My thoughts keep me up at night and as a result, I am always thinking about tomorrow or worrying.  Read Full »


Dr. J. Mariano Anto Bruno Mascarenhas

Answer: Hi, Welcome to icliniq.com. Most causes of sleeplessness are due to wrong habits and the good news is that it is easy to cure them. 1. You should have a natural circadian rhythm. Try to go to sleep and get up at the same time every day, and wake at the same time. 2. Do not take coffee or tea aft...  Read Full »

How to change the circadian rhythm of sleeping?

Query: Hello doctor, I would like to know how to reset my circadian rhythm from being advanced to a more normal schedule. I have been going to bed around 9 pm and waking up at 5 am. I would like to shift my rhythms to waking up at 7 am and going to bed around 11 pm. I get very sleepy at around 8:30 to 9 ...  Read Full »


Dr. Saraswat Kumarshri Shriniwas

Answer: Hello, Welcome to icliniq.com. It is nice to see that you are so aware of your sleep rhythms. Advanced sleep phase syndrome (ASPS) is common in the elderly and not so common in your age. However, your symptoms match ASPS and I will suggest some techniques to delay your circadian rhythm. Ensure th...  Read Full »

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