Sleep

The 2B-Alert app can tell you how to optimize caffeine intake for alertness based on your sleep schedule and average caffeine consumption.

Poor sleep makes it more difficult for mothers at 18 weeks postpartum to perceive and interpret their infant’s cues and respond appropriately.

Sleep Medicine

Sleeping with an artificial light on at night, such as a lamp or television, was associated with an increased risk of weight gain of at least 11 pounds and obesity in women.

Health
Sleep

Older adults who took music lessons or educational classes for at least ten weeks developed healthier habits, like exercising and sleeping more. Music lessons also improved well-being by leading to more socializing and feelings of satisfaction and fulfillment from making music.

Psychology of Music

Sleep deprivation led to more social withdrawal and loneliness in people; others perceived this loneliness and felt lonelier themselves.

Adults who ate dinner more than two hours before going to bed had a reduced risk of prostate and breast cancer compared to adults who ate dinner less than an hour before bedtime. Those who ate dinner before 9 p.m. also had lower risk than those who ate after 10 p.m.

Health
Sleep

College students who reported poor sleep quality experienced more mental health symptoms related to anxiety, depression, and ADHD. Daytime dysfunction (sleepiness, less enthusiasm) was related to symptoms of depression and inattention whereas frequent sleep disturbances (bad dreams, feeling too hot or cold) were related to symptoms of anxiety and hyperactivity.

Sleep Health

NBA players who tweeted between 11 p.m. and 7 a.m. the night before game day scored fewer points and had fewer rebounds, possibly because their performance was affected by a lack of sleep.

A lack of deep sleep was associated with reduced ability to deal with difficult emotions like shame. This may increase the long-term risk of developing depression.

Proceedings of the National Academy of Sciences

Higher nighttime temperatures due to climate change are projected to disrupt summer sleep patterns, particularly for people who cannot afford air conditioning and people who are more sensitive to heat, like the elderly.