In an experiment to understand the impact of sleep deprivation, ABC News correspondent Dan Child stayed awake for 50 consecutive hours, revealing significant effects on concentration, coordination, and basic task performance. Doctors observed heightened cravings for carbs, worsened coordination, and…
Micro sleeps are brief moments when the brain involuntarily shuts down, leading to lapses in awareness that are nearly impossible to resist. These unconscious moments, driven by hormonal changes, can be particularly dangerous in high-stakes situations like driving, where even…
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.
Alcohol’s acute and chronic effects on sleep and its impact on sleep architecture Alcohol initially reduces sleep onset latency and enhances slow-wave sleep, but later disrupts sleep quality. Chronic alcohol use leads to long-lasting changes in sleep, including increased REM…
A study tested the impact of consuming 400 mg of caffeine at 0, 3, and 6 hours before bedtime. Results showed that caffeine significantly disrupted sleep, reducing total sleep time and increasing wakefulness at all time intervals. Even when taken…
This study, part of the Multiethnic Cohort (MEC) Study, investigates the link between sleep duration and mortality. Data from over 135,000 participants show that both insufficient (≤5 hours) and excessive (≥9 hours) sleep increase the risk of cardiovascular disease (CVD)…
Shift work, particularly night shifts, significantly disrupts sleep patterns and increases the risk of fatigue, cardiovascular diseases, and some cancers. Circadian misalignment during shift work impairs cognition, reduces sleep quality, and elevates accident risk. While countermeasures like naps and caffeine…
This study investigates the relationship between heart rate variability and sleep stages in healthy individuals and patients with obstructive sleep apnea. Sleep stages, defined by EEG patterns, follow a structured cycle including light, deep, and REM sleep. Obstructive sleep apnea…
Adolescents who lack sufficient sleep experience cognitive deficits like reduced attention span and impaired learning. Emotional consequences include increased anger, irritability, and difficulty regulating emotions due to underdeveloped prefrontal cortex functions. Sleep deprivation also leads to dangerous behaviors, such as…