外出旅游爬山是项有益于身心健康的体育活动。经常从事爬山活动,能增强人体的呼吸系统和心血管系统的功能,使骨髓造血功能得到提高,血液中的红血球、血红蛋白增多,心脏输出的血液量和肺通气量增大。同时,由于爬山时随着高度的增加,氧气比较稀薄,这对增强人体大脑缺氧条件下的耐力也是大有裨益的。此外,爬山活动可以培养人们具有坚强的意志,克服困难的精神和陶冶人们的情操。 爬山活动在我国有悠久的历史,尤其是重阳登高这种民间风俗,在东汉时代就已有了。相传,东汉时期的汝南地方,有位名叫桓景的人。随方士费长房学道。 Traveling and hiking is a good physical and mental health activity. Often engaged in mountain activities, can enhance the body’s respiratory and cardiovascular system functions, so that bone marrow hematopoietic function is improved, the blood of red blood cells, hemoglobin increased, cardiac output of blood and pulmonary ventilation increased. At the same time, due to climbing with the height increase, oxygen is relatively thin, which enhances the human brain under hypoxic conditions is of great benefit. In addition, mountain climbing activities can train people with strong will to overcome the difficulties and cultivate people’s sentiments. Climbing activities in our country has a long history, especially the ascendance of folk this folk custom in the Eastern Han Dynasty. According to legend, the Runan area in the Eastern Han Dynasty, there is a person named Huanjing. With the alchemist long room to learn Road.