“Our master brain clock (or biological clock), which tells us when to go to bed and awaken, when to eat and when to be active, is very sensitive to light,” explains Kenneth P. Wright Jr., Ph.D ...

Research published on Monday suggests that exercise may give the body what it needs to fine-tune an internal clock that’s out of sync — as long as it happens at certain times. The “master ...

Through Copenhagen’s ornate Town Hall trooped a steady stream of sightseers last week to look at the workings of the world’s most complex astronomical clock. Set in motion shortly before ...

This challenges and disproves the commonly held notion that circadian rhythms were strictly organized in a hierarchical manner, and that light resets the master clock in the SCN, which then ...