Be vigorous, live actively!

The importance of testosterone for your physical, mental and sexucal well-being

Essential for your well-being

In midlife, the first age-related changes may appear. with a healthy way of life, manay age related diseases may be prevented or postponed.  Adequate exercise and a sensible diet play  role here.  These factors may also have a direct effect on endogenous testosterone production and this hormone, in turn, has a curcial rol in physical, mental and sexual well being.

What is testosterone?

Testosterone is the most important male sex hormone.  It is responsible for a boy's development into a man during puberty and is necessary throughout a man's life for his health and quality of life.  Testosterone is produces mainly in the testes and then enters the bloodstream from where it reaches its target organs.

What are the functions of male sex hormones?

It is known that male sex hormones are responsible for the growth of the beard, body and pubic hair, the male physique as well as libido and virility.  Some hormones also boost performance by improving oxygen supply.  Moreover, they affect the brain through which the powers of concentration and memory and the mood can be improved.  General symptons of testosterone deficiency are decreased sexual desire (libodo), erectile difficulties,  feeling of depression and fatigue.  Also a change in body composition with associated decrease in muscle strength and increased fat mass is a common complaint of men with low levels of testosterone.

  • Depressive mood

  • Sleep disorders

  • Tiredness and exhaustion cause by the decreased formation of blood cells

  • Hot flushes

  • Concentration disorders

Typical complaints of men with low level of testosterone:

  • Loss of muscular strength

  • Increase in body fat

  • Decrease in libido and virility

  • Reduction in bone mass

Which levels of testosterone are normal?

The levels of estoserone in men may very greatly.  Values between 12 and 35nmol/L are considered normal.  Values below 12 nmol/L may need to be treated if typical testosterone deficiency symptoms are present.

^ nmol/L is a common laboratory unit

* singapore urological association andropause guidelines october 2006

12 to 35 : normal *

8 to 12 : treatment can be considered*

under 8  : treatment needed*

Testosterone Level for male

What is late-onset hypogonadiam?

Late-onset hypogonadism (LOH) is defined as a clinical and biochemical

syndrome associated with advancing age and characterized by typical

symptoms and a deficiency in serum testosterone levels. It may result in

significant detriment in the quality of life and adversely affect the function of multiple organ systems.


Clinical manifestations of LOH in males

1. Diminished sexual desire (libido) and erectile quality and frequency,

particularly nocturnal erections

2. Changes in mood with concomitant decreases in intellectual activity,

cognitive functions, spatial orientation ability, fatigue, depressed mood

and irritability

3. Sleep disturbances

4. Decrease in lean body mass with associated diminution in muscle

volume and strength

5. Decrease in body hair and skin alterations

6. Decreased bone mineral density resulting in osteopaenia, osteoporosis

and increased risk of bone fractures

7. Increase in visceral fat