I smoke the highest thc I can find. The one thing I have to say about marijuana is do not smoke it before you work, start work and then smoke. This will give you great concentration. And allow the marijuana to help you. If you smoke before it may cause laziness and hurt your workout. So I highly recommend smoking after uIf you smoke before it may cause laziness and hurt your workout. So I highly recommend smoking after you started.It depends on the strain. From my experience, a lower strain with less high promote blood flow for me. In my country, we call that low strain Arizona.