Test raised heart rate....clen raises heart rate. Just a guy.....posted ya right. Also, thyroid is uber sensitive. Slight over use and natty thyroid shuts down permanently. Why be a slave to a pill forever? Work them carbs. Stairmaster. Treadmill. Sweat.

IMHO you seem a little young and your BF is a little high to be doing AAS at the moment. We really do not know anything about you. I would not recommend taking T3 and Clen without some serious homework bro. Your heart will explode (not literally) if you do not know what your doing. Imagine your heart racing constantly while you sweat profusely and go into anxiety attacks! You may already have high blood pressure as it is and should get a clean bill of health before attempting anything like that. This would be analogous to putting two extra quarts of oil in a race car and red lining it for 100 laps. You would blow the engine! T3 should only be taken when you are around 8-9% and are trying to lose that last 2-3% and for 4-6 weeks at a time. Not to mention T3 for too long could render you in a continuous state of Hypothyroidism (when your thyroid does not produce enough T3 and T4 to regulate weight and temperature) and requires medication for life. Clen and T3 at your percentage may be too much risk for too little reward. I would highly recommend a strong cardio regiment with an extremely clean diet. Every success on this site starts with diet and routine. The gear is secondary to that discipline and that discipline alone. Have you seen guys at the gym who look kind of fat but brag that they are on juice? If they are they have no business being on it as they are not disciplined enough to follow proper protocol. Also cardio is your friend. Often hated but the best results come from pushing yourself out of your comfort zone for long periods of time. If you must lift all the time then I would get a heart rate monitor and try to keep your target rate above 60% at first. For me that is 150 bpm keeps me in an anaerobic state between lifts. I consider this part of my cardio in addition to a 20 minute run after my lift about three times a week. This is especially helpful in BF range 12+ percent. I think you would have much greater success on cycle if you dropped about 2-3 percent before starting. On another note at 22 years you should have more than enough natural testosterone to have a kick ass body on that frame without AAS. You will find greater success in this endeavor if you wait a few years bro. At least 25 is the recommended age to even consider a first cycle. If you are hell bent on doing this then please do your research as you are looking at a dangerous combo with no experience or data!