If you have trouble sleeping at night, maybe you need to get out more during the day.
Older adults are more likely to suffer from insomnia.
They may have trouble getting to sleep at night, or they may wake up during the night. Now researchers in Japan may have found a reason for this. They believe that it's exposure to light that makes the difference. The researchers compared nursing home residents with and without insomnia with a group of healthy college students. The group with insomnia had the worst sleeping patterns and the lowest levels of melatonin, a hormone that doctors believe has an effect on sleep.