Hello arrsers, I'm 16, and I'm ginger, so you can bully me about that if it yields self-amusement. However, recently, I've been going to the gym and sorting out my physical fitness, which used to be akin to that of a banana peel. I've dropped my 1.5mile runtime from 13:30 to 10:30 and plan to get it down to around 9:00. I regularly walk about 12 miles with my friend over the hills but plan on going a bit further, the summer holidays has provided time to do that. My longest run was about 9 miles and took me roughly 75/80 minutes, but I haven't been outside running for a few months, so haven't done anything near that length recently. I plan on increasing run lengths hopegully to around 40-50 miles. I'm slightly worried about injuries that I may cause myself from running/cycling/walking. I often came home from running with my skin freezing cold but feeling personally perfectly fine, could I be at risk from none-freezing cold injuries that I can't even feel? I generally start running from cold and run slowly for 1/2 miles before speeding up, is this okay for warming up or will cold starts cause me problems? What can I do to minimalise risk of serious injury? How long should I run for in one go, as after 9 miles, my body was pretty weary, even though I'd eaten plenty of carbs in the morning. Finally, what sort of gear should I wear for running? I used to simply wear a t shirt and tracksuit with running trainers, is there any significant improvement I can add to that? Helpful answers appreciated. Cheers, Dobber.