Sleep
Sleep is a pillar of physical health and mental clarity. Research covers the impact of sleep on cognitive performance, emotional regulation, and the latest innovations in sleep-tracking wearables and smart recovery tools.
Level 1
Human brain not designed to stay awake after midnight
Scientists propose the Mind After Midnight hypothesis, arguing that the brain shifts into a markedly different mode when we stay…
Adults should aim for 7 or more hours of sleep to maintain optimal health
Experts recommend at least 7 hours of sleep for adults to avoid health risks like obesity and heart disease. Sleeping less than 7 hours harms the body.
Level 2
Bedroom night light ties to higher heart and stroke risk
In 88,905 adults followed with wrist light sensors, brighter nights were tied to higher future risks of coronary disease, heart attack, heart failure, atrial fibrillation, and stroke under the paper's primary model 3 (demographics, socioeconomic factors, physical activity, smoking, alcohol, diet, and urbanicity). That pattern is association, not proof that your bedroom lamp causes disease. A lab study in healthy young adults found one night of moderate room light during sleep caused a higher nighttime heart rate and lower heart-rate variability and showed higher HOMA-IR, higher 30-minute insulin area under the curve, and a lower Matsuda index the next morning versus very dim light. For everyday sleep space habits, the CDC recommends a cool, dark, quiet bedroom and limiting bright artificial light before bed.
videoListening to theta binaural beats may help calm and sleep
Binaural beats are a sound effect made by playing two slightly different tones, one in each ear. The brain perceives…
Sleeping naked is not proven to extend lifespan
Headlines that tie nudity to extra years of life are not backed by serious longevity research. What holds up in sources is narrower: heat at night often fragments sleep, public health pages recommend a cool bedroom, and one home-based study in community-dwelling older adults points to a 20-25 °C band under nonlinear models with large person-to-person differences. Choosing pajamas is personal; comfort and room temperature matter more than anti-aging slogans.
videoLosing weight permanently
How to Lose Fat and Slim Down? Doing cardio, crunches, and core exercises can help, but it’s often not enough.…
videoOzlo Sleepbuds mask noise and stream audio to help you sleep
Ozlo Sleepbuds use noise masking and a secure fit to block snoring and traffic. They now stream your audio and switch to sleep sounds when you doze off.
Loop Dream sleep earplugs reduce low noise and help light sleepers sleep through the night
Loop has released Dream, a pair of reusable sleep earplugs that aim to block low, irregular nighttime sounds while staying…
Level 3
Match your hardest work to your body clock to think better
Most people have a clear internal daily rhythm, called a circadian rhythm, that sets natural peaks and dips in alertness.…
Ashwagandha may ease stress and improve sleep, but it is not risk free
Ashwagandha is a plant used in Ayurvedic medicine. It is often called an adaptogen, meaning a substance that may help…
Sleep deprivation kills by damaging the gut, but antioxidants may help
Sleep deprivation kills flies and mice by causing oxidative damage in the gut, a process that antioxidants can reverse, according to a Harvard study.
videoMicro sleeps highlight the dangers of sleep deprivation
Micro sleeps are brief moments when the brain involuntarily shuts down, leading to lapses in awareness that are nearly impossible…
Night shifts disrupt sleep and raise the risk of illness and accidents
Shift work can disrupt circadian timing and shorten sleep, which is linked to fatigue, reduced alertness, and higher accident risk. Evidence also links night and rotating shift work to modestly higher cardiovascular risk, while cancer evidence is mixed and depends on exposure definitions.