hi guys this question is from my brother as he is a boxer. He has a upcoming fight coming up in 6weeks and he needs to drop weight. He wants to know if he can use Clenbuterol to drop some bodyfat and shred down to the weight he desires. He is worried because he does alot of training and cardio but no weights just running and boxing. Woud clen have any affect on him if he goes for runs? like people told him it messes with the heart.