One study performed in 1973 showed that white blood cells from individuals who had consumed 100 grams of sugar (about 20 teaspoons) were less active. This study has been cited for many years as evidence that sugar suppresses the immune system, by no less than the famous pediatrician Dr. Sears.
However, no studies have since proven that individuals who consume more sugar actually get more colds or flu. The way the body fights disease is extremely complex and the effects of sugar consumption on the immune system have not been definitively identified. The scientific consensus seems to be that eating a healthy, balanced diet and maintaining normal weight is the best way to sustain overall well-being, including reducing susceptibility to illness. There is little to no evidence that eating a candy bar or drinking a Coke will cause you to be acutely susceptible to disease.
http://nutrition.about.com/b/2009/10/05/does-sugar-really-hurt-your-immune-system.htm
http://www.usatoday.com/news/health/painter/2009-10-04-your-health_N.htm
No, gonorrhea does not weaken the immune system. AIDS is the STD that weakens the immune system.
some studies have revealed that it does weaken the immune system
Yes it can weaken the immune system.
no
No
no
no
Genital warts!
Yes it will.
steroids
Herpes does not weaken the immune system. HIV is the STD that weakens the immune system. A weakened immune system makes herpes outbreaks more likely.
Inflammation occurs with asthma