When you were a kid I bet you moved around a lot more. Walking from class to class, playing outside with friends, maybe some sports. Now you’ve likely got an office job where you sit all day, you may sit for 30 minutes to an hour to commute both ways, or maybe you just work from home (even less movement)

We don’t really realize it, but for the most part, adults just move less than they did as kids. This is often what we perceive as “metabolism slowing down”. We just have less time to be active.