<p>As clocks spring forward, light and movement are cues for daytime wakefulness that can improve sleep and overall health</p>
Circadian rhythms are physical, mental, and behavioral changes that follow a daily cycle, responding primarily to light and darkness in the environment. They influence sleep-wake cycles, hormone release, and other bodily functions.
Light therapy involves exposure to specific wavelengths of light to treat various conditions, including seasonal affective disorder (SAD) and sleep disorders. It helps regulate circadian rhythms and improve mood.