Each kidney contains millions of nephrons, making this vital organ one of the heaviest in the body: about 4.5 to 6 ounces (125 to 170 g) in male adult and from 4 to 5.4 ounces (115 to 155 g) in ...

A N ADULT HUMAN body consists of some 37trn cells. Not so long ago, these were thought to come in 220 different types. That number, the product of painstaking decades spent peering through ...

As a result, researchers are building an invaluable resource for studying development, disease and potential treatments—from digital twins of the human body to transplantable, lab-grown organs.