Melatonin is a hormone that naturally occurs in your body. It has been proven to be important in the regulation of your circadian rhythms. It helps the body by assisting in regulating the sleep-wake cycle. It does this by chemically causing drowsiness and lowering your inner body temperature causing you to sleep better.
The pineal gland creates melatonin only when it is senses absolute darkness. Many people that work shift work or living in areas away from the equator (where daylight hours are much longer during the summer months) may not be able to produce enough melatonin to control their circadian rhythms.
Melatonin is available as a dietary supplement in many countries including Canada and the USA. If you are planning on using Melatonin to help in assisting you in falling asleep you need to understand that this is not a “sleeping pill” or a drug. It is safe for you to use and you will not become physically dependent on it.
Melatonin is sold as a dietary supplement, not as a drug in Canada and the USA. However, many brands are manufactured to food grade and not the higher pharmaceutical grade. When supplements are only manufactured to food grade this means that it can be within plus or minus 15% of what is stated on the bottle's label - so a 2mg tablet may be 1.7mg or 2.30mg a total variance of 0.6mg. This could explain why, if you have tried melatonin before, it may have worked one night and not the next. So, if you are going to spend money on Melatonin get a pharmaceutical grade Melatonin that has a 100% potency guaranteed so you are sure to get the same dosage every night. Sweet dreams!
Melatonin and Puberty
10% of seven-year-old white girls are already developing breasts, as are 23% of black girls, and 15% of Hispanic girls, according to a study published by Cincinnati Children's Hospital Medical Center, which appears in the September 2010 issue of Pediatrics. Those numbers are greater than they were ten to thirty years ago, and appear to still be on the rise for white girls.
There could be mean reasons for this. One is related to melatonin as it is thought to control is the onset of puberty. Dr. Jennifer Luke in the UK published these finding in 2001. In 1997,Dr, Luke, as part of her PhD thesis, reported that fluoride accumulates in the human pineal gland. The pineal gland produces melatonin an important hormone which acts like a biological clock.
Read the full article here Melatonin and Puberty
Melatonin side effects
Not everyone will experience side effects when using melatonin. One common Melatonin side-effect is an altered sleep pattern. Some people experienc headache and mental or mood changes may also occur. A few people ahve reported itching, fast heartbeat or heavy headedness. Melatonin causes your body temperature to lowering. In some studies vivid dreams are also associated with melatonin use. Melatonin side-effects are usually temporary and most often can be relieved by reducing the melatonin dosage. So the suggestion is to start with a smaller dosage.