Bright-light therapy has been used in a wide variety of disorders, including seasonal affective disorder, bipolar disorder, major depression, postpartum depression, insomnia, traumatic brain injury, and dementia.15 Interestingly, light exposure might even play a role in treating obesity, diabetes, and cardiovascular disease.16 Light therapy can help to regulate your circadian rhythms and normalize your sleep, which, as you now know, can have powerful effects on your metabolism and mitochondria.
