Run more than half a kilometer per hour faster? That's how you do it.
Distracted by your phone
Leave your phone at home, or put it on airplane mode while running. Research shows that you run less quickly if you occasionally look at your phone screen.
Half kilometer per hour faster
Actually an open door, because it makes sense that you slow something down when you look at your screen. The research shows that you run more than half a kilometer per hour faster if you are not distracted by your phone.
