He was a pioneer in chronobiology, the study of how our bodies understand the passage of time.

The F.D.A. authorized AstraZeneca’s treatment to be given outside a health care setting, although it will still need a prescription.

Liv Schmidt has inspired debates with videos that some believe encourage disordered eating. One social media site tried to remove her.

The case takes aim at the major pharmacy benefit managers, agency officials said, claiming that they favored more expensive insulin products and forced patients to pay more.

He identified the cause of a respiratory condition that was killing 10,000 infants a year in the United States. Then he helped design a drug that slashed those mortality rates.

Three scientists were recognized by the Lasker Awards for their work on the GLP-1 hormone. Others were honored for work to stop H.I.V. and for immune system discoveries.