Physical Factors
Physical factors that can affect libido include: endocrine issues such as hypothyroidism, levels of available testosterone in the bloodstream of both women and men, the effect of certain prescription medications (for example flutamide), various lifestyle factors and the attractiveness and biological fitness of one's partner. Inborn lack of sexual desire, often observed in asexual people, can also be considered a physical factor.
Being very underweight or malnourished can cause a low libido due to disruptions in normal hormonal levels. There is also evidence to support that specific foods have an effect on libido.
Anemia is particularly a cause of lack of libido in women due to the loss of iron during the period.
Smoking, alcohol abuse and drug abuse may also cause disruptions in the hormonal balances and therefore leads to a decreased libido. However, specialists suggest that several lifestyle changes such as drinking milk, exercising, quitting smoking, lower consumption of alcohol or using prescription drugs may help increase one's sexual desire. Moreover, learning stress management techniques can be helpful for individuals who experience libido impairment due to a stressful life.
Aphrodisiacs are known to increase individuals' libido due to either their chemical composition or their consistency.
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