Human bodies make 2 million red blood cells per second. They each live for 120 days and spend that time zooming completely around the body every 20 seconds, carrying oxygen from the lungs to other ...

The endothelium is a cell layer that lines the body’s blood vessels and lymphatic vessels. These cells are necessary to maintain healthy organs, tissues, and overall body function. The cells of the ...

Tiny tweaks in DNA folding can have big effects. A study from Umeå University shows that even the most subtle changes in DNA's shape have an important influence on gene activity and energy production.

The immune cells that protect us from infection and cancer seek out a wide array of fuel sources to power their function -- including some long thought to be cellular waste products. The findings lay ...