A growing body of work suggests that cell metabolism — the chemical reactions that provide energy and building materials — ...

Here, travel into the tiny world of DNA, all the way down to the level of the atoms that make up a single DNA base. The human body contains about 100 trillion cells, each working together in a ...

The engineered mice were unable to regulate their body temperature for the first eight hours following cold exposure, after which fat cells that use UCP1 took over, shutting down mitochondria and ...