Q: WHY DO I HEAR A CRUNCHING SOUND FROM MY KNEE WHEN I DO SQUATS

A: In many cases it may be harmless but I cannot tell you for sure -- you need to talk to a doctor or physical therapist about it. If the sound is accompanied by any kind of pain or discomfort in the knee, then you definitely need to consult a medical professional about it.

Q: what exercise to make my shoulders wider

A: You cannot do anything to increase the shoulder width at the bone level, but you can develop your shoulders to some extent to create the impression of wider shoulders. It comes down to two things: good upper body development -- shoulders obviously, but also wide upper back and thick traps -- and narrow waistline. Slim waist will give the impression of wide shoulders.

Q: Hi mike, I am a 5 foot 4.5 inch girl. i am 15 years old and weigh 112 pounds. i run on my schools cross country and track teams, though the past two months i have been out due to injury. first i had a torn calf muscle, and then almost immediately after i recovered from that, i raced once, and ever since have not been able to do the teams workouts due to a strained IT band (in the same leg). my legs seem to be achey all the time, and i am wondering if it is possible that i'm not eating enough, which would cause my body to "eat" muscle and therefore make me more prone to injury..?