Pink noise is often used to help people fall asleep, but new research suggests that it may interfere with the most restorative stages of sleep. A study by the Perelman School of Medicine at the University of Pennsylvania, published in the journal Sleep, found that pink noise reduced REM sleep and disrupted overall recovery during […]
Late Bedtimes are Associated With a Higher Risk of Heart Disease
Middle-aged and older adults who tend to be more active in the evening have poorer cardiovascular health than those who are active earlier in the day. This association appears to be more pronounced in women, according to a new study published in the Journal of the American Heart Association. The findings suggest that the time […]
Reduced Sleep Can Alter the Strain on the Heart Caused by Intense Exercise
In one study, participants completed an intense workout after a normal night’s sleep and after three nights of reduced sleep. When they exercised after reduced sleep, levels of the heart damage biomarker troponin rose slightly more than when participants exercised after a full night’s sleep. This study, published in the journal Molecular Metabolism, is a […]
Your Brain Does Something Surprising When You’re Not Sleeping
Almost everyone knows this feeling. After a night of poor sleep, it is more difficult to concentrate. Your thoughts wander, your reaction times slow down, and your mental clarity diminishes, especially when you need to be most alert. New research from MIT sheds light on what happens in the brain during these brief lapses in […]
How Cancer Disrupts the Brain and Triggers Anxiety and Insomnia
Scientists have discovered that breast cancer can disrupt the brain’s internal clock almost immediately after the onset of cancer, without anyone noticing. In mice, tumors flattened the natural daily rhythm of stress hormones, disrupting the feedback loop between the brain and body that regulates stress, sleep, and immunity. Remarkably, when the researchers restored the correct […]
- 1
- 2
- 3
- …
- 215
- Next Page »
