You Were in Bed for Eight Hours. So Why Are You Still Tired?
Laura sleeps eight hours almost every night. At least that is what she tells people. She goes to bed around: 23:00 Her alarm rings at: 07:00 […]
Laura sleeps eight hours almost every night. At least that is what she tells people. She goes to bed around: 23:00 Her alarm rings at: 07:00 […]
Lisa considers herself active. She runs three times a week. On two other days, she goes to the gym. Her smartwatch regularly records workouts. Her resting […]
Sarah is doing almost everything that should make her fitter. Three months ago, she ran three times a week and went to the gym twice. Her […]
Exercise has a strange way of making people suspicious of anything that feels too easy. If a run ends without burning legs, a soaked shirt or […]
Two people can have exactly the same resting heart rate while the timing between their individual heartbeats looks surprisingly different. A heart beating 60 times per […]
The human body does not run on one fixed fuel. After a carbohydrate-rich meal, more glucose may be readily available. During a long period without food, […]
Your alarm clock may say that morning begins at 7:00, but the human body does not need a digital display to recognize that another day has […]
A modern smartwatch can record thousands of measurements before its owner has finished breakfast. Heart rate changes from minute to minute. Sleep is divided into stages. […]
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