Aristotle said ""If men start to engage in ual activity at too early an age.....more below!!!!?

"If men start to engage in ual activity at too early an age... this will affect the growth of their bodies. Nourishment that would otherwise make the body grow is diverted to the production of semen. ... Aristotle is saying that at this stage the body is still growing; it is best for ual activity to begin when its growth is 'no longer abundant', for when the body is more or less at full height, the transformation of nourishment into semen does not drain the body of needed material." Is this true? Would this mean that this could be the equivalent to masturbating at adolescence?