Dr. Nicole says, "It is a medical and physiological fact that the best blood in the
body goes to form the elements of reproduction in both the sexes. In a pure and
orderly life, this matter is reabsorbed. It goes back into circulation ready to form the
finest brain, nerve and muscular tissues. This vital fluid of man carried back and
diffused through his system makes him manly, strong, brave and heroic. If wasted, it
leaves him effeminate, weak and physically debilitated and prone to sexual irritation
and disordered function, a wretched nervous system, epilepsy and various other
diseases and death. The suspension of the use of the generative organs is attained
with a notable increase of bodily, mental and spiritual vigour."

If the spermatic secretion in man is continuous, it must either be expelled or be
reabsorbed. As a result of the most patient and preserving scientific investigations, it
has been found that whenever the seminal secretions are conserved and thereby
reabsorbed into the system, it goes towards enriching the blood and strengthening the
brain.

Dr. Dio Louis thinks that the conservation of this element is essential to strength
of body, vigour of mind and keenness of intellect. Another writer Dr. E.P. Miller says:
"All waste of spermatic secretions, whether voluntary or involuntary, is a direct waste
of the life-force. It is almost universally conceded that the choicest element of the
blood enters into the composition of the spermatic secretions. If these conclusions are
correct, then it follows that celibacy in life is essential to man's ultimate well- being."

http://www.hariomgroup.org/hariombooks_default/satsang/English/TheSecretOfEternalYouth.pdf