Fitness trackers and sleep apps: when numbers stress you more than they help
A good sleep score doesn't always feel restful, and a bad one can leave you more awake than before.
Read moreBlog
Knowledge on nutrition, training and vitality by Christoph Jaschke.
Fitness Myths, Fact-Checked: Carbs, Protein, Magnesium
Carbs at night, protein timing, and magnesium for cramps sound like settled rules. They aren't. What the science actually says — and what really works.
Read moreHow Many Calories Do You Really Need?
Calorie needs sound like a simple number. They're not. Why a single number from the internet doesn't tell you much — and what actually matters.
Read more