Capsaicin is the ingredient in pepper that give them their heat. Peppers are measured by heat values. The hotter the pepper, the more capsaicin it contains.
Because of this heat, it has reactions on the body. These are very healthy, promoting circulation and blood flow.
Cayenne pepper (and it's heat) is used to treat many medical conditions such as sore throat, chronic pain, headache, toothache, heart disease, digestion problems.
When taken internally, cayenne stimulates the flow of stomach secretions & saliva. This increases digestion.
Herbalists believe that cayenne is one of the most valuable herbs in the herb kingdom, because it causes blood flow for the digestive system, heart and circulatory system. It increases the effectiveness of other herbs as well.
Cayenne can rebuild stomach tissue. It aids in elimination and assimilation of proteins, making food more nutritious. It prevents stomach ulcers.
Cayenne is anti-inflammatory and has been shown effective in cancer treatments.
Additionally, there have been numerous records of cayenne reviving people suffering from heart attacks when administered during the heart attack.
Cayenne can be purchased in pill/capsule form. While Italian researches have effectively used the capsule form, there are other methods of ingestion that are more effective.
Liquid tinctures added to water and consumed in water is the most effective way to absorb and ingest cayenne. In this manner, some cayenne is "tasted" in the mouth providing quick absorption before the remainder is absorbed in the stomach.
Cayenne in powdered form is also absorbed similarly and is the second most effective method.
Lastly, cayenne can be taken in capsule form. The drawback to this method, is that cayenne is absorbed all in the stomach and all at once, as the capsule dissolves and the body gets a punch of cayenne.
This produces a jolt or shock for the body, rather than a gradual level of absorption.