Did you know irregular light/dark patterns can disrupt your circadian rhythm? Not only that, a boggled circadian rhythm increases your risk of disease and reduces your quality of life. This is especially a problem for individuals with Alzheimer’s and related dementias (ADRD), because they spend more time indoors, exposed to lower light levels.
Irregular circadian patterns for individuals with Alzheimer’s or ADRD can become life-threatening if individuals leave their homes in the night and wander alone outside.
Light affects sleep patterns by acting on the retina (the part of the eye that’s sensitive to light) and syncing the suprachiasmatic nuclei (SCN), the body’s master clock, to its own light/dark pattern. When we get enough sunlight, we sync up with the 24-hour solar day. When we’re not exposed to regular daily patterns of light, our sleep patterns go bonkers.