I would think there must be some thermogenic / metabolic properties, otherwise why do we get warm or sweat when eating something hot and spicy
I've never researched it tho. I've seen cayenne pepper caps for sale in supp stores...
here's some info:
http://www.theepicentre.com/Spices/cayenne.htmlExerpts:
Cayenne pepper takes its name from its supposed centre of origin - the Cayenne region of French Guiana, Cayenne deriving from a Tupi Indian name. It is now grown largely in India, East Africa, Mexico and the United States, in fact most tropical and sub-tropical regions. Chiles originated in South America, where they have been under cultivation since prehistoric times. The seed's long viability facilitated the rapid spread of the plant throughout the tropics and sub-tropics by the Spanish and Portuguese, the spice becoming as popular there as vine pepper. Chiles were long known as 'Indian' pepper - meaning 'of the New World' rather than 'of India'. Despite its specific name, and the supposed use of special chiles for it, there is little to distinguish cayenne from ordinary pure chilli powder, except that commercial 'chilli powder' usually contains other spices such as garlic or cumin, and is rougher in texture.
Attributed Medicinal Properties
Cayenne pepper exerts a number of beneficial effects on the cardiovascular system. It reduces the likelihood of developing arteriosclerosis by reducing blood cholesterol and triglyceride levels. Cayenne also reduces the platelet aggregation and increases fibrinolytic activity. Cultures consuming a large amount of Cayenne pepper have a much lower rate of cardiovascular disease. Cayenne has been used as medicine for centuries. It was considered helpful for various conditions of the gastrointestinal tract, including stomachaches, cramping pains, and gas. Cayenne was frequently used to treat diseases of the circulatory system. It is still traditionally used in herbal medicine as a circulatory tonic (a substance believed to improve circulation). Rubbed onto the skin, Cayenne is a traditional, as well as modern, remedy for rheumatic pains and arthritis due to what is termed as a "counterirritant" effect. A counterirritant is something that causes irritation to a tissue to which it is applied, thus distracting from the original irritation (such as joint pain in the case of arthritis). Many people consume lots of hot peppers in tropical climates as the heat will induce perspiration, which actually helps a person to cool off. Cayenne's primary chemical constituents include capsaicin, capsanthine, beta carotene, flavonoids, and vitamin C. Cayenne causes the brain to secrete more endorphins. It is considered thermogenic, meaning it can "rev up" metabolism and aid in weight loss. Cayenne also improves circulation. Cayenne helps to relieve pain, not only due to its endorphin enhancing properties, but also when diluted and used topically it helps to block the transmission of substance P, which transports pain messages to the brain.