Info on Semen Loss

• With each reproductive act the bodily energy is diminished; the capacity for exertion is lessened; the languor and lassitude that follow indicate the strain that has been put upon the forces of the body, the amount of energy that has been abstracted from the store at the disposal of the organism.

  Now, the seat of the reservoir of energy is the nervous system, and any drain upon the energies of the body is a drain on the nervous system, whose highest regions will, on the general grounds already familiar, be the first and most affected. Hence the reproductive act has an effect on the highest regions of the nervous system which is of the nature of a stress, and tends to produce disorder.
  With a normally constituted organism the stress of the reproductive act is not sufficient to produce disorder, unless it is repeated with undue frequency ; on the contrary, by providing a natural and legitimate outlet for surplus activity, its influence is distinctly beneficial. But in an organism whose energies are naturally defective, the tendency of the reproductive act will be to increase the deficiency ; and in an organism which is inherently below the normal stability, the tendency of the stress of the reproductive act will be to produce disorder.

  This tendency will be especially severe when indulgence in the sexual act is begun at too early an age.¹

• 
  Hence it is in males chiefly that are exhibited the ill-consequences of excessive sexual indulgence ; and in the male sex a very large proportion of cases of dementia are either due to,
  or are aggravated, enhanced, and prolonged, by undue sexual indulgence.²

• there are an enormous number of cases, forming together a considerable proportion of the total population, in which premature decadence of the mental powers, premature exhaustion of
  the energies, premature inability for vigorous and active exertion, result from excessive sexual indulgence in early life. The young man, full of vigour, boiling over, as it were, with energy and activity, recently let loose from the restraint of school or college, unaccustomed to control himself or to deny himself any gratification, launches out into excesses which at the time appear to be indulged in with impunity. But sooner or later comes the day of reckoning. He has felt
  himself possessed of abundance of energy, and he has dissipated it lavishly, feeling that after each wasteful expenditure he had more to draw upon ; but he is in the position of a spendthrift who is living on his capital. Had he husbanded his resources and lived with moderation, the interest on his capital would have sufficed to keep him in comfort to old age ; but he has lavished his capital, has lived a few short years in great profusion, and before middle life he is a beggar.³

Footnotes:

1,2,3. Charles Arthur Mercier, Sanity and Insanity. (1895) Walter Scott

pgs:  234, 374, 375