In humans, virtually every aspect of our physiology and behavior is mediated by our internal biological clocks. One feature of modern life that may have negative consequences for our health is exposure to light levels that are not aligned with the 24-hour solar day. Circadian rhythms, the internal biological rhythms of our body's processes, require short wavelength (blue) light early during the day to optimize their temporal regulation. Experiencing light at night or insufficient light during the day can lead to a host of problems such as obesity, major depression, bipolar depressive disorder, seasonal affective disorder, sleep disorders, cancer, heart disease and more. Dark Matters sets out to shine a light on the health and well-being consequences of poor circadian hygiene and provide strategies to offset the negative health effects of disrupted circadian rhythms.