Our circadian rhythms, or internal clocks, control many vital biological processes such as sleep, cell cycles, and even healing. However, new evidence suggests that circadian rhythms may also be a major player in seasonal affective disorder, or SAD.| Chronobiology.com
There is an increasing amount of interest in light therapy and especially in light therapy alarm clocks. Recent studies in chronobiology and human behavior have shown that simple exposure to the right type of light at the right times of day can affect mood, sleeping habits, and even overall health.| Chronobiology.com