A new study has found a link between daytime napping and increased risk of all-cause mortality in middle-aged and older ...

The rhythm of a healthy heart may seem steady, but underneath that regular thump lies a rich, ever-changing pattern. These ...

An actigraphy device is similar to a wristwatch and uses accelerometers to measure the person's movement. Coupled with sleep ...

Why do cats sleep so much—and so lightly? In this post, we break down the fascinating world of feline sleep. Learn how your ...

Specific factors, including deep sleep and daytime urinary control, are associated with treatment-responsive nocturnal ...

That theory posits that, if memories were shrubs, the non-REM phase of sleep helps them grow taller and stronger. The REM ...