Could the loss of sleep be destroying the endocrine clock that controls weight gain? Could how much you sleep really control your appetite? This may shock you. Yes. The prescription for better health is sleep, and it's free.

"Lights Out: Sleep Sugar and Survival," a popular book by T.S. Wiley, tells us there is simply WAY too much light in our society today. People don't sleep enough anymore. The real truth is that the urgent need to sleep is also the cause of Type II diabetes and other diseases of aging.

The answer lies in the circadian rhythmicity and evolution. This rhythm is about a 24-hour cycle in the physiological processes of all living beings (animals, plants, fungi and cyanobacteria.). The term "circadian" was coined by Franz Halberg, and it means "around", and dies, "day", meaning literally "about a day." Chronobiology is the formal study of daily, weekly, seasonal and annual rhythms. Circadian rhythms are can be modulated by external cues such as the sun (dawn and dusk) and temperature.

Almost every woman in her 40's has trouble sleeping at night, thanks to hormonal changes. It happens in peri-menopause but the truth is, these women never really sleep well for the rest of their lives.

There are answers. You can take chewable Melatonin tablets that are available at Trader Joe's. Let several of them melt in your mouth an hour prior to bedtime. (Take one for every hour after dark before midnight, with seasonal light changes.You can also try Tylenol PM as a last resort. Or take a walk at dawn and dusk, whihc will help to reset your internal clock to sleep better.

If you can help it, do not let pets or kids wake you up during the middle of the night. Make sure your bedroom is dark. That means lights out. No moonlight or lamp post lights through the window. No computer screens or TVs. All clocks with lights need to face the wall. Plus you won't have to get up and go to the bathroom during the night if you stop drinking liquid beverages at 6PM.

Get a minimum of nine hours of sleep or more every night. Let your bedroom be your anti-aging clinic. Try it, and your family and friends might just ask you who your plastic surgeon is.

T.S. Wiley is the author of "Lights Out" (Pocket Books, 2000) and "Sex, Lies & Menopause," (Harper Collins, 2005.) These books and the website www.thewileyprotocol.com - are a must read for any woman who is seeking cutting edge therapies for the treatment of lack of sleep and the symptoms of perimenopause and menopause. You will find countless testimonials of women who have found finally found relief and the ability to increase libido.