Enlightening Facts about Sleep!
Dr. Karen Baker, BSc, DC
Having trouble sleeping lately? The real problem could be light and your exposure to it at the proper times of day to ensure a full restful night’s sleep.
The body’s biological clock, which regulates our sleep-wake cycles, is strongly affected by light, especially bright light such as sunlight.
Many shift workers have problems sleeping because their work schedules conflict with their bodies’ natural sleep-wake cycle cues. Melatonin, a hormone produced by the pineal gland in the brain, affects both our desire to sleep and the quality of our sleep. Darkness enhances melatonin production, while light inhibits it. Therefore, shift workers may experience extreme drowsiness at work and suffer from insomnia when they actually settle down to get some sleep during daylight hours.
The same is true for many elderly people who do not get outdoors much and therefore, lack an adequate amount of light each day. One of the major health complaints for the over 65 population is difficulty sleeping. Brightening the level of light in their homes during the day and early evening hours may alleviate the major cause of their sleep distress!
Because bright lights can disturb the normal production of melatonin, and interfere with your ability to get a good night’s sleep, make sure your bedroom is completely dark. Use light-blocking shades, lined curtains or even an eye mask to block out all light, including a night light and bright clock radio lights, because even a dime-sized area of light shining anywhere on the body can affect the production of melatonin and interfere with restful sleep!