Iron Palm or Iron Hand (Chinese: 鐵掌功) is a body of training techniques in various Chinese martial arts. It is originally one of the 72 arts of the Shaolin temple. These conditioning techniques are typically meant to condition the hands to allow a practitioner to deliver very powerful blows without injury to their hands. Overview Iron Palm is the vernacular for the results of serious training centered mainly on the palm of the hand, although other parts of the hand may also be targeted, and covers many different conditioning methods. Most Iron Palm systems are considered internal, utilizing qigong exercises to train other aspects of development in addition to the external conditioning which ultimately alters the internal structures of the hand, such as the bones and sinews. However, martial artists who practice Iron Palm are not unified in their training and techniques. Some teachers treat their Iron Palm methodology as a valuable secret, and only share their specific techniques, training methods, and herbal remedies with a select few. Not all Iron Palm methods are a martial arts style unto itself, but rather form a special feature of specialized conditioning that appears in many schools of Chinese martial arts. Some non-Chinese martial arts styles, such as Muay Thai and many schools of Karate, also feature hand conditioning, but the term Iron Palm is not typically used to describe these types of training, as they tend not to focus on developing internal power when conditioning the hands for the bone-crushing forces encountered with the striking maneuvers evident in breaking normally "unbreakable" objects. General principles Iron Palm training often involves three primary components: Strengthening of the striking limbs by developing the tendons and ligaments from the shoulders to the fingertips, then striking or slapping relatively hard objects enclosed in canvas/leather bags. Following a conditioning session, the striking area is usually treated with a medicinal aid created from plant derivatives, usually a traditional Chinese liniment called Dit Da Jow. A common belief among practitioners is that failing to apply Dit Da Jow after Iron Palm training sessions can have negative effects on long-term health, such as movement limitation, arthritis, and other nerve damage to the hands. It is also believed that small blood clots can also occur if good Dit Da Jow is not used causing eye blindness through clots in small capillaries (blood vessels). Soaking and thorough massaging of hands after training is