00:00What if the biggest benefit of exercise is not in your muscles, but in your brain?
00:04Scientists just discovered that the reason you can run longer and faster over time
00:08may actually start in your head.
00:10In a new study, researchers found that exercise switches on special brain cells
00:15linked to energy control.
00:16And the shocking part is this.
00:18Those neurons stayed active even after the workout ended.
00:22When mice trained for two weeks, they built more endurance,
00:25and those brain cells became even stronger.
00:27But when scientists turned those cells off after exercise,
00:31the endurance gains completely disappeared.
00:33That means the brain is not just helping during exercise.
00:36It is also working after exercise to help the body recover, adapt, and improve.
00:42Researchers believe this hidden brain activity may help the heart, lungs, and muscles get better at training.
00:47So next time you work out, remember, you are not just building a stronger body.
00:52You may be training a stronger brain, too.
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