The rhythm of a healthy heart may seem steady, but underneath that regular thump lies a rich, ever-changing pattern. These beat-to-beat changes, known as heart rate variability, or HRV, reveal much ...

New research suggests that older adults experience lower stress levels when their bedroom is kept at 24°C (75 °F) during sleep. Maintaining a bedroom temperature around 24°C (75.2°F) or lower during ...

Sleep affects multiple physiological systems; however, a comprehensive overview has not yet been reported. A study published in Nature Medicine analyzed sleep characteristics in adults and their ...

Maintaining a bedroom temperature of 24°C (75°F) at night while sleeping reduces stress responses in older adults, according to new Griffith University research published in the journal BMC Medicine.

Sleep is one of the core metrics all smart rings track. They typically offer a daily sleep score out of 100, which takes into ...