It's thought to occur when daily body rhythms become out-of-sync because of the reduced sunlight.

Taking medications off schedule can upset natural body rhythms and interfere with sleep.

The remainder needed evening light or morning melatonin to put their body rhythms back on track.

He maintains that shorter hours fit body rhythms better.

Students can see how organs and body rhythms respond in so many different scenarios.

So far we have not considered how to use a knowledge of body rhythms to our advantage.

It is this adjustment which causes difficulties for our body rhythms.

It was a slow giving up, quite obvious if your mind and body rhythms were attuned to the world around you.

I could feel his body changing rhythm, feel that he was close.

I am ecstatic about the research on body rhythms and energy levels.