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Jun 05, 2020

Sleep deprivation in flies and mice leads to increased ROS (Reactive oxygen species) molecules in the gut. This is shown to be highly correalted to lethality. To show the causality, the over-expression of anti-oxiodants restores normal lifespan in the animals.

alexandra vaccaro allan rechtschaffen animals biology carol everson dogs dragana rogulja fruit flies giorgio gilestro guts harvard medical school inflammation john allan hobson keishi nambara maria mikhailovna manaseina metabolism neuroscience paul shaw physiology rats reactive oxygen species ros ruth benca sleep sleep deprivation university of chicago yosef kaplan dor

science

May 17, 2020

Recent research links worry and rumination with poorer sleep in non-clinical populations, including taking longer to get to sleep, having less total sleep time and having a poorer sleep quality. This consistent association may also partially explain the link between worry/rumination and ill health.

perseverative cognition rumination sleep stress worry

science

Mar 22, 2020

Researchers found that that receptivity to pseudo-profound fabricated statements and religiosity were the most consistent predictors of greater use of, perceived effectiveness of, and a willingness to spend more money on essential oil.

behavioral and social aspects of health cognition complementary and alternative medicine oils personality personality traits religion sleep

science

Jan 13, 2020

Drosophila kept in total darkness had "severe" long-term memory impairments compared to those exposed to normal light cycles. Scientists suggest that light promotes the release of neuropeptides related to long-term memory formation and argue light is "essential" for maintaining long-term memory.

explainer health mind & body neuroscience sleep standard

science

Nov 15, 2019

Brain activity during sleep obeys mathematical patterns similar to what we see during earthquakes. Those patterns may explain how the brain "spontaneously" switches from one stage of sleep to another during the night, which scientists have struggled to explain in the past.

biology explainer math mind & body neuroscience sleep standard

science

Nov 13, 2019

People who sleep for fewer than five hours a night have significantly shorter telomeres than those who get an "adequate" seven hours of sleep, according to a new study. Using FitBit data, researchers show how consumer sleep trackers can shine a light on the costs of not getting enough sleep.

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science

Nov 03, 2019

Deep sleep, by the synchronized slow electrical activity of neurons, may clean toxins from the brain

alzheimer's beta-amyloid brain brainwave cerebrospinal fluid sleep waste

science

Nov 01, 2019

Scientists now know how sleep cleans toxins from the brain

sleep

science

Oct 17, 2019

Scientists discover a third gene mutation of "natural short sleepers" (people who only need 4-6 hours), explaining further why they don't need the suggested 7 hours a night.

evolution explainer genetics health long mind & body sleep

science

Oct 01, 2019

Better quality, longer duration, and greater consistency of sleep correlated with better grades in a study, but there was no relation between sleep on the night before a test and performance; instead, sleep duration and quality for the month and the week before a test mattered more.

education exercise explainer innovation sleep standard

science

Sep 19, 2019

How the sleeping brain decides which memories are worth keeping

energy explainer health medicine mind & body sleep standard

science

Sep 12, 2019

Sleeping too much, or too little, boosts heart attack risk, according to a new study of nearly a half-million people, which found that those who slept fewer than six hours were 20% more likely to have a heart attack, and those who slept more than nine hours were 34% more likely.

cardiac arrest cardiac health cardiovascular disease heart attack heart health sleep

science

Sep 10, 2019

Researchers have found that one or two naps a week can reduce your chance of having a heart attack or a stroke, after studying 3,462 randomly selected residents of Lausanne, Switzerland, between the ages of 35 and 75.

explainer health public health science sleep standard

science

Aug 28, 2019

A genetic mutation explains why “natural short sleepers” only need 4 to 6 hours of sleep. In a human and mouse study, a mutation in ADRB1 was shown to affect wakefulness and REM sleep, causing short sleep without negative effects.

experiments explainer health mind & body sleep standard

science

Aug 18, 2019

Having kids makes you happier, but only when they move out, according to a new study, which suggests that parents are happier than non-parents later in life, when their children move out and become sources of social enjoyment rather than stress (n=55,000).

caregivers child-free childcare children empty-nesters happiness home kids money older parental leave parents relationships sleep social subsidy well-being

science

Aug 06, 2019

An estimated one in 300 people may have genes that make them more likely to wake up extremely early: between three and five in the morning. According to a new study (n=2,422) those genes may run in families.

biology explainer genetics health history mind & body sleep standard work

science

Jul 23, 2019

Fragmented REM sleep can harm the amygdala’s ability to process emotional memories from embarrassing, cringe-worthy experiences overnight, which can lead to more embarrassment and insomnia the next day, a cycle of poor sleep and feeling bad that can last weeks, suggests a new fMRI brain scan study.

biology explainer health mind & body neuroscience sleep standard

science

Jun 11, 2019

Sleeping with artificial light or TV on at night associated with increased risk of weight gain and obesity in women, finds a new study which followed 43,722 women over almost 5 years; associations do not appear to be explained by sleep duration and quality.

clinical medicine epidemiology health health / medicine healthcare (trbc) internal medicine living / lifestyle obesity public health respiratory conditions sleep sleep disorders us women's health

science

Mar 28, 2019

Study on 2,063 UK teens shows that exposure to high levels of air pollution is linked to having psychotic experiences. Exposure to the pollutant nitrogen dioxide (NO2) was linked to 71% greater odds of having experienced a psychotic episode.

mental health 2050 cities health sleep teens explainer standard mind & body

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