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Does an increase in testosterone cause anabolism? If yes, what can cause it? (except from taking anabolic steroids and exercising)

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If you're talking about the natural fluctuations of T, the answer is likely No. It's a common idea that it's good to do leg day even for arms because squats and deadlifts give you high temporary levels of T (all exercise do, but squats and deadlifts use a larger amount of muscle.) This higher level of T is then supposed to be good even for your arms.

Studies where one group is training arms while one is training arms and legs do not show this effect however, the higher T levels in the latter group does not result in a higher muscle growth in the arms.

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  • when I stated that it's impossible to grow muscles without training or taking anabolic steroids, I was told that any testosterone change can lead to muscle growth, how true is that?
    – Herokiller
    Jul 20 '15 at 7:29
  • It's false. T levels fluctuate for many different reasons. Also, your first statement is technically incorrect. Most people who add weight by adding calories add muscle mass (and fat mass.)
    – Mårten
    Jul 20 '15 at 8:37
  • muscle mass with only calories surplus? is it very small amount?
    – Herokiller
    Jul 20 '15 at 8:54
  • or do u mean this added muscle mass will come from the fact that daily activities will now use higher weight(fat mass)?
    – Herokiller
    Jul 20 '15 at 9:18
  • so the raise in testosterone itself doesn't cause anabolism?
    – Herokiller
    Jul 20 '15 at 9:26

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