Asthma steroids are for mending your Granny-lungs Goodsoulette, not for turning you into King-Kong's stunt double. My all round health has imroved so much since getting back on my asthma prescriptions but my muscle mass hasn't really increased much, I've just been able to do more exercise. Anabolic steroids are a different type of steroid alltogether and can completely change your body's chemical balance. The best way to do it is to get a balanced mix of exercises, start jogging, cycling, swimming, playing footy, martial arts if you want to loose weight. You will also tone up and get better core strength and balance. It's no good being huge if you can't avoid a punch!