Give Now

A Moment of Science

Posts tagged circadian clock

September 8, 2016


Man sleeping in bed

Early-morning Shivers

If you've ever stayed up the whole night through, you may have noticed that you begin to feel cold in the hours just before morning. Why does this happen?

February 18, 2014


Fingers appear to pinch the sun

Human Sleep Cycle Slightly Longer Than A Day

Starved of environmental cues telling us when it's time to go to sleep, our sleep cycles are actually a little longer than twenty-four hours.

December 2, 2005


Light and Flowering

What causes some plants to flower in spring, while others bloom in summer, and still others in fall? Learn more on this Moment of Science.

Stay Connected

What is RSS? RSS makes it possible to subscribe to a website's updates instead of visiting it by delivering new posts to your RSS reader automatically. Choose to receive some or all of the updates from A Moment of Science:

Support for Indiana Public Media Comes From

About A Moment of Science

Search A Moment of Science