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In a recent study, scientists devised a way of reversing the buildup of compounds that lead to some age-related diseases.

The agency is considering whether compounding pharmacies should be allowed to produce BPC-157, TB-500 and other previously banned peptides.

Jackie found an online audience through a webcam pointed at her nest in California. She was rescued last week after a fight with other eagles, officials said.

The Agency for Healthcare Research and Quality slowed the awarding of new grants last year. Now it is stopping existing ones.

The young mathematician won a prestigious Fields Medal for her work on the so-called Kakeya conjecture.

Dr. Tsimerman won one of four Fields Medals, an award for top mathematicians under 40, for his work on the André-Oort conjecture, but is now changing his focus to artificial intelligence.

The mathematics professor has won a prestigious Fields Medal for his work at the intersection of geometry, topology and physics.

Dr. Deng, a mathematics professor at the University of Chicago, received a Fields Medal for his work on an equation describing fluid mechanics.

The awards are bestowed only once every four years to mathematicians under the age of 40.

Agency scientists are advising against allowing widespread use of several peptide injections. Robert F. Kennedy Jr., the health secretary, has said people should be free to experiment.