What is one possible advantage of oral contraception aside from preventing pregnancy?

Oral contraception can have several benefits beyond just preventing pregnancy, one of which is the reduction in the occurrence of anemia due to iron deficiency. This happens because oral contraceptives can regulate menstrual cycles and often lead to lighter periods. Lighter periods can result in less blood loss, which in turn decreases the risk of developing iron deficiency anemia. This is particularly beneficial for individuals who may already be prone to anemia or those who experience heavy menstrual bleeding, as the hormonal regulation can provide a healthier balance in their overall reproductive health.

The other options, while possibly true in some cases, do not reflect advantages of oral contraception. Increased risk of stroke, for instance, is generally considered a potential side effect of certain types of hormonal contraceptives, particularly in individuals who smoke or have other risk factors. Weight gain is often cited as a concern among those using oral contraceptives, but it isn't universally experienced nor is it considered a benefit. While some individuals may notice an improvement in skin complexion due to hormonal changes that reduce acne, this can be variable and is not recognized as a primary advantage of oral contraceptives compared to the benefits regarding menstrual health and iron levels.