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
Sleeping too little or too much is linked to a higher risk of heart-related death
A large-scale study of 135,000 participants shows that sleeping too little or too much is associated with an increased risk of cardiovascular death. The Multiethnic Cohort Study reveals a U-shaped risk pattern.
Sleep apnea disrupts the link between sleep stages and heart rate
A study published in Neuropsychopharmacology reveals how heart rate variability changes across sleep stages and how sleep apnea disrupts this balance. Evidence suggests distinct brain systems control sleep and wakefulness.
Teenagers who sleep too little think and feel worse
Adolescents who lack sufficient sleep experience cognitive deficits including reduced attention, impaired learning, and worse academic performance. Sleep deprivation also increases anger, irritability, and emotional regulation difficulties, and leads to dangerous behaviors like risky driving. Research shows 8-10 hours of sleep per night is optimal for adolescents.
Level 3
Sleep twitches at dozing off are common and usually harmless
Many people feel a sudden jolt just as they are falling asleep. Doctors call this a hypnic jerk, also named…
Lucid dreaming: induction methods, benefits, and scientific research
Lucid dreaming is a phenomenon where the dreamer becomes aware they are dreaming and may even gain control over the…
Startup says two people sent a word to each other while dreaming
A California startup reports that two lucid dreamers exchanged a simple message while asleep. According to the announcement, sensors confirmed…
videoOxyZen by BrainCo: an AI meditation headband for sleep
This new AI meditation headband from BrainCo, called OxyZen, uses EEG sensors and an AI sleep coach to help you relax and sleep better.
Suggested slug: ai-meditation-headband-sleep
A machine that measures mattress firmness so reviews stop being guesswork
CNET created an innovative Mattress Smasher (Mattress Smasher 9000) to take the subjectivity out of mattress firmness testing by using…
The “No-Sleep Challenge” highlights severe risks of sleep deprivation
Sleep deprivation, worsened by social media trends like the “no-sleep challenge,” poses serious health risks. Extended wakefulness can lead to…