Forefoot running helped me tremendously, but the people in the shoe store advised me to use proper shoes for that (I guess I took the Nike Fly thing, which was

Forefoot running helped me tremendously, but the people in the shoe store advised me to use proper shoes for that (I guess I took the Nike Fly thing, which was good for that) and to start slowly with it. I used months to slowly adapt myself to it, starting with no more than 50 meters on these things per day, and I was already an experienced runner at that time.