THURSDAY, March 16 (HealthDay News) -- Capsaicin, the component that gives jalapeno peppers their heat, may also kill prostate cancer cells, a new study suggests.Initial experiments in cancer cells and mice show that capsaicin causes prostate cancer cells to undergo a kind of suicide. Researchers speculate that, in the future, pills containing capsaicin might be used as therapy to prevent prostate cancer's return. According to their report, capsaicin caused almost 80 percent of prostate cancer cells in the mice to die. In addition, prostate cancer tumors treated with capsaicin were about one-fifth the size of tumors in untreated mice. "Capsaicin...