I was talking to my father today about how much muscle I could gain in a year(I based it on Lifeforce's 50 pounds in 11 months) and he said 50lbs in a year is way too much for your bones to handle. He said it would make your bones more likely to break, and also cause you to have arthritic conditions once your older...any of this true? And if it is, how much is weight is safe to gain of muscle in a year?