Cayenne pepper is a very healing plant and its benefits still remain unexplored. One of its benefits that was recently proven was that it can stop a heart attack in a minute. This is a spice you should make sure to always have in your cabinet. You never know when you might need it.
Dr. Christopher, an American herbalist, has never lost a patient to a heart attack in his 35-year career. His trick is to always give a cup of cayenne pepper tea (a teaspoon to a cup of water) to his patients suffering from heart attack but still conscious. SO this theory is proven to work in real time conditions and not scientific studies in controlled conditions. This makes it even more trustworthy.