hey..ive done many hours of research on clen and t3 and used both myself, however my fiance wants to try them to drop some bodyfat, the problem is that she burns through anything, she builds a quick tolerance to everything....what are the real risks of clen, are there really heart problems like heart enlargement (or are those just results from animal based tests) along with that, i feel that clen works better used continuously versus the traditional 2 wks on 2 off method, any input? any input from ladies? should she use clen and or t3? she does ok with ephedra and is on a decent diet but wants something stronger...