A child born today does not receive a perfectly exact copy of their parents’ DNA. New genetic changes arise as the genome is passed from one generation to the next. In 2025, researchers who sequenced four generations of one family…
In May 2025, WeightWatchers — one of the best-known symbols of the weight-loss industry — filed for bankruptcy protection. For decades, the company sold an idea familiar to millions: follow the rules, control your food, watch your weight, and the…
In 2019, twenty adults spent a month in a clinical research center run by the U.S. National Institutes of Health. For two weeks they ate mostly ultra-processed food, and for two weeks minimally processed food. Researchers deliberately designed the offered…
There is a simple way to notice the difference between hunger and the desire to eat. Imagine that you have just had a substantial dinner and someone offers you another serving of exactly the same food. You would probably refuse.…
The strangest form of sleep deprivation does not begin when a person cannot fall asleep. It begins when sleep is possible, the alarm is set for early morning, the eyes are already tired, and the hand still starts the next…