Your Circadian Rhythm is your body’s internal 24-hour clock that not only controls your sleep, but also other important parts ...

If you were left in the dark, your body clock would become out of step with the 24-hour clock. There are sensors in your eyes that detect light and send signals to the part of your brain that ...

For 10 days, she cordoned herself off from all of the signals the body uses to tell time. She deprived herself of light, from both the sun and electricity, clocks, most screens and other people.

This master clock translates cues from the environment into directives for the body. For example, receptors in the eyes detect darkness and pass that signal along to the suprachiasmatic nucleus ...

“When we open our eyes to light in the morning, it signals to the clock that the day has started and the clock will relay that message to all other cells in the body via cortisol. When it gets ...