Circadian clocks, which regulate most of the physiological processes of living beings over a rhythm of about 24 hours, are one of the most fundamental biological mechanisms. By deciphering the cell ...

The sympathetic nervous system, which helps your heart and other vital organs function all the time, increases activity in response to danger or stress, preparing the body for extra demands. Stress is ...

Vitiligo is an autoimmune disease, which means it occurs when the immune system attacks the body’s own tissues and cells. Treatments that suppress this immune response may help slow depigmentation or ...