RCT of Tactile touch for elderly people

INTERVENTION: rest(base line)(5min), Blood Pressure Measurement(2min), tactile touch for left hand (10min), rest(5min) rest(base line)(5min), Blood Pressure Measurement(2min), rest(15min) CONDITION: healthy elderly people PRIMARY OUTCOME: HR, HRV(HF, LH/HF), Blood Pressure, Skin Temperature, Blood flow, finger pulse wave, VAS(relax‐tension) and POMS INCLUSION CRITERIA: The erderly people who has an ablily of decision making by oneself about the participation to the research, and who sends a normal social life and has a physical strength for going out alone.