Melatonin is a hormone produced from the neurotransmitter serotonin and secreted by the photosensitive pineal gland in the brain.  Its a time keeper in the body, has a daily rhythm which peaks at night (regulating the circadian rhythm) and is even involved with the longer seasonal rhythms.  The retina (in the eye) and the gut [...]

It is perfectly normal to lay awake on some nights, especially when going through a temporary upheaval in life – be it emotional, financial or physical. But if sleep is in the habit of continuously dodging you, you should not ignore the problem, as there could be an underlying condition behind it all, or it [...]