How many days a week should I run hills?
How many days a week should I run hills? 1-2 days a week of hill repeats is plenty to gain the benefits. Also take a week off every once in awhile to really give yourself a break. Running hills too often can greatly increase your risk of injuries such as stress fractures and shin splints.
Does running hills boost testosterone?
This is because sprinting up a hill requires more effort, which can help to increase testosterone levels even more.