Ribosomes, the cell's protein-making factories, consume large amounts of energy as they build the proteins that keep cells alive and functioning. When cells experience stress—such as lack of nutrients ...

Neurons have a "hibernation mode." Scientists discover how brain cells use RNA tentacles to lock their protein factories together to survive when energy is low.

Aging cells stage a dramatic renovation project. Within the first three days of reaching adulthood, they start dismantling up to 70% of one of their most important internal structures. Scientists just ...

Innovations in imaging and genetic engineering are coming together to probe the biophysics of cytoplasm inside living animals.