Science

Follow PBS NewsHour’s complete coverage of Science and Technology stories.

Music can be a stimulant or a sedative. It can also improve athletic performance by enhancing mood, improving muscle control and helping the brain build key muscle memories, according to London researcher Costas Karageorghis.

Wednesday on the NewsHour, more prominent Republicans disavow Donald Trump, but his campaign pushes back. Also, a primary loss for the House GOP, a Trump “intervention,” the WikiLeaks founder promises new releases, classified briefings for presidential candidates, recent voter-ID court…