Playing sports regularly is a great thing: it’s enjoyable, good for our health, our mind and recommended by medical professionals everywhere. However exercise can have a distinctly unhealthy effect on our feet. When we run, our body weight is multiplied up to three times, with our feet bearing the brunt of this stress at every stride (over 1,000 strides per mile, per foot). An average-sized man will process 112 tons of weight through each limb per mile. The demands made on your feet and lower limbs can lead to a range of injuries, including blisters, sprained ankles, torn ligaments, shin splints (leg pain), knee pain, lower back pain and other joint or muscle problems. Added to these are common complaints such as corns, callus and athlete’s foot. Asking too much, too soon of your joints and muscles can lead to injury. Running style, poor footwear and even minor limb length differences can also contribute to injuries.