Quote Originally Posted by Vindec View Post
Don't run with bricks in a rucksack. It messes you up when you are older. Back pain is debilitating. Exercise sensibly and don't go over the top as it has long term detrimental effects.
I would have played Golf instead of football from a young age and had lessons, as you can play it for the rest of your life, and would have gone skiing and snowboarding as soon as I could afford it when working.

That applies to most things, take them up as young as you can.