With
either mental or physical stimulation, your brain signals the nerve
ending in the penis to release nitric oxide. Nitric oxide relaxes or
dilates blood vessels, enabling them to open up and bring more blood to
the penis and helping to create an erection. In fact you need to
maintain the levels of testosterone to enhance the above reaction. If
your levels of testosterone is low, it will reduce the sexual desire as a
result of men's libido. In this article, we will discuss how low levels of free testosterone hormone imbalance effects men's libido.
What is testosterone?Starting
at age 40, men start to experience the hormone changes to their
physical, sexual and mental functions. The abdominal fat and shrinking
of muscle mass is a sign of low levels of testosterone being produced by
your body. Testosterone is not only important to our sexual activity,
but also helps to maintain protein synthesis, muscle mass, bone
formation and improves oxygen uptake throughout our body as well as
controlling sugar levels and maintaining normal immune system.
How is testosterone produced?
Testosterone
production is a series of secretions. It starts from the brain, when
the hypothalamus detects a deficiency of testosterone in the blood, it
secretes a hormone called gonadotropin-releasing hormone to the
pituitary gland resulting in the luteininzing hormone being produced
from the pituitary gland that prompts the legydig cells to produce
testosterone. If any of the above steps go wrong, you may have
tetosterone deficiency causing erectile dysfunction and men's libido.
Low levels of testosterone and men's libido?Starting
at the age of 40 the levels of prolactin increases, stimulating the
conversion of dihydro-testosterone and converting estrogen resulting in
estrogen occupying testosterone receptor sites or competing with the
testosterone for the receptor sites on the cell membranes blocking
testosterone's ability to induce a healthy hormone signal resulting in
low sexual desire.
Estrogen
also can increase the production of sex-binding globulin to bind any
active free testosterone into inactive bound testosterone.Testosterone
must be kept in free form in the bloodstream in order to enhance long
lasting sexual desire.
In
fact, testosterone promotes sexual desire and facilitates performance,
sensation and ultimate degree of fulfillment. Study shows that even with
a restoration of free testosterone, some men may still have erectile
dysfunction that is caused by other factors unrelated to hormone
imbalance, such as blood vessels in the penis being blockage by
cholesterol build up.
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