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I often hear that different athletes take steroids to be stronger and more enduring, and to achieve their goals faster. I even found a reliable online store where you can buy injectable steroids, so there is no problem in finding a quality drug at an affordable price on the Internet now.But I don't think that you shouldn't take something without the supervision of the doctor.
In 3 of those types of sport you can find elements of strenghtning your core.
But what is the best i doubt to give the answer. Everyone chose what's best for them :)