Circadian Rhythm

New kind of cell in the eye that perceives brightness discovered by researchers

These cells don't directly help us 'see' the world around us, their role is more in "sensing" light intensity.

Whether you're a morning lark or a night owl depending on your genes, study finds

The study looks at different genes in sleep & wake, the brain's response to light & internal clocks.

India’s official timekeeper suggests the country needs two separate time zones

Two time zones will help because in the Northeast, the sun rises and sets ahead of the IST.

Blue light emitted from digital devices might cause sleep dysfunction: Research

Blue light emitted from digital devices may affect your sleep and cause sleep dysfunction, researchers have found.