Light, Sleep and Mental Health

• Patients and Families, Sleep Disorders

Light, both natural and artificial, can affect our health and mental health in several different ways. Depending on the time of day, light exposure can promote or disrupt sleep. A persistently disrupted sleep cycle can contribute to a variety of health problems, including heart disease, obesity and mental health disorders. Research is also beginning to clarify non-circadian effects of light – light can have a direct impact on the sleep and mood centers in the brain.