A whole day of work can bring exhaust and health problems to our bodies. Why not have a massage rest in the evening or noon breaks? It is a good idea to do exchange massage between two partners, for massage can make the whole body relaxed and reduce some illness risks. However, bad massage could cause serious bodily injury, so it's necessary to know some tips for 건마 (healthy massage). For a healthy massage, hands are the primary tool for every therapist. For them, fingernails should be kep...