Fasting and Your Biological Rhythms By Ebrahim Kazim, M.B., B.S., D.T.M & H., M.R.C.P. 12/11/2002 Allah (all glory be to Him) tells us in the Holy Quran about Ramadan that,
“(He wants you) to complete the prescribed period (of fasting), and to glorify Him in that He has guided you; and perchance ye shall be grateful.” (2:185)
Many benefits, in addition to the spiritual, result from completing this prescribed period of fasting. This article attempts to explain those related to our biological rhythms.
The Stages of SleepThe background activity of the brain is called the electroencephalogram (EEG) and can be recorded by the use of scalp electrodes. The dominant frequency and amplitude characteristic of the surface EEG varies with states of arousal.
A person goes through five stages while going to sleep.
Calm wakefulness is accompanied by alpha waves 8-12 Hz (cycles per second) and low voltage fast activity of mixed frequency. This is called stage one. Alpha waves disappear when we open our eyes.
As sleep deepens into stage two, bursts of 12-14 Hz (sleep spindles) and high amplitude slow waves appear.
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