According to a study whose results are published in the February 2004 issue of Hypertension, repeated use of melatonin appears to lower blood pressure. Melatonin plays a role in regulating your internal clock, which appears to be disturbed in people with high blood pressure.
This double blind study involved people with untreated high blood pressure. They were given 2.5 mg of melatonin 1 hour before bedtime for three weeks or 2.5 mg of melatonin only once and then a placebo for the remainder of the three-week period. The results showed those taking the melatonin for the course of three weeks lowered their blood pressure and those who took the melatonin only once, did not. As an added benefit, those taking the melatonin reported sleeping better.
Melatonin has no known side effects and does not cause ‘morning after’ effects (unlike most over-the-counter or prescription sleep aids). Melatonin is non-habit forming.
Melatonin is a hormone secreted by the pineal gland, a pea-size structure at the center of the brain. At night, as our eyes register darkness, melatonin is produced to help our bodies regulate our sleep-wake cycles. The amount of melatonin produced by our body seems to lessen as we get older. believe this Researchers feels this may explain why young people have less problems sleeping than older people.
Studies have shown taking melatonin supplements can help us sleep and ease jet lag. Taking melatonin has shown to be safe; it is non-addictive and has no side or morning after effects (like most over-the-counter and prescription sleep aids). may have many other uses and has been reported to make people feel better, strengthen the immune system, and reduce free radicals in the body. Current research is underway to determine melatonin's effect as an anti-oxidant and as an immno-modulator in cancer. More recent studies have shown taking melatonin before bedtime may help lower blood pressure.
Melatonin should only be taken at nighttime, usually about thirty minutes prior to going to bed. If you commonly sleep during the night, melatonin should not normally be taken during the day - and vice versa - because melatonin plays a role in setting the body's daily clock.