Do you think we need to get out more?
Most certainly! If one has no health issues, a good 5 mi. hike over rough terrain with a 45lb. pack full of camera gear would be good for you. Not to mention the extras like, at least a bottle of water and plenty of healthy snacks to munch on while you are looking for suitable subjects for photographing. However, I am no physician so don't take my advice seriously (disclaimer in the event you go flat of your back on the trail)