CAN'T GET TO SLEEP?
CAN'T STAY ASLEEP?
WAKING TIRED & UNREFRESHED?
Your CIRCADIAN RHYTHM could be out of balance.
WHAT IS THE CIRCADIAN RHYTHM?
In humans, sleep/wake cycles follow a 24-hour pattern linked to Earth’s light/dark cycle.
The primary circadian clock in humans is located within the hypothalamus in the brain , and is regulated by key hormones and neurotransmitters such as MELATONIN, CORTISOL, gamma aminobutyric acid (GABA) and glutamate.
THE CORTISOL-MELATONIN DAILY DANCE
Cortisol responds to light , wakes us up and keeps us alert during the day. It should be at its peak in the morning. Melatonin is a hormone that your brain produces in response to darkness and is important for initiating and maintaining sleep.
Melatonin and cortisol are in an opposite relationship; when melatonin is high, cortisol should be low and vice versa.
These two hormones together play a vital role in co-ordinating the circadian rhythm and regulating sleep/wake cycle. When either of these gets out of balance, our ability to sleep is affected.
WHAT CAUSES DISRUPTION OF THE SLEEP/WAKE CYCLE?.... Check out my next blog.