Circadian rhythm - Topics

Night eating: why late night snacks hit harder How does the body clock decide when you feel sleepy? How does morning sunlight set up your night sleep? DLMO testing: the saliva sample that finds your biological night The post-lunch dip shows up even when you skip lunch Should you keep a fixed wake time even on weekends? Can the biological clock be reset after years of night shifts? Why morning light exposure changes how the whole day feels The 3 to 5 am circadian trough is where night shift accident data clusters The core body temperature minimum is the true anchor of your night Melatonin is a darkness signal not a sedative: why 0.5 mg timed right beats 5 mg at bedtime The blue light warning is weaker than the industry selling filters admits Kleitman's 90-minute basic rest-activity cycle is still argued about The wake maintenance zone gives you an alertness spike right before bedtime Ten minutes of morning light does more for your clock than any supplement Social jet lag: the weekend lie-in that ruins your Monday Why older adults wake at four in the morning Shift workers rarely adapt fully to night work even after years on the schedule Chronopharmacology finds the same drug behaving differently at 8 am and 8 pm Morning sunlight and mood: how much and how early? Chronotype is largely genetic: a night owl cannot decide to fall asleep earlier Does the circadian clock set hunger independently of habit? Eating late sets the liver clock adrift from the brain clock Teenagers' body clocks shift two hours later while school still starts at eight One all-nighter shifts your clock less than three late nights in a row