Jalapeno peppers are very good for both the heart and respiratory system. Jalapeno peppers contain a compound known as ‘capsaicin’. Capsaicin is the compound that gives jalapeno peppers its distinctive hot flavor. Capsaicin protects the heart in many ways.he jalapeno pepper has many health benefits because of its many healthy components. Not only is it great for hair growth and reduction of hair loss, it is also good for the body because of its high quantity of antioxidants. Antioxidants help reduce the free radicals that damage cells.