what the diff giving advice to a 18yr old or a 30 yr old on how to cycle??

theres real chance that both may never recover from a single cycle.

i do agree with alot above, you shudnt touch aas before 25 because you can achieve so much more naturally, with diet and training.

if like to see you guys with ur magical numbers on taking a substance before this 'exact' age can damage you. You need evidence to back a statement up in the scientific world, now show me a study.