科学家研究发现,挺起胸可以使肺活量增加20%左右。肺活量增加了,身体的各部位获得的氧气也就增加了,这样人就不容易疲劳。人到老年,由于性激素水平降低、骨生长减缓、钙盐沉积减少,骨质就变得疏松,就容易驼背缩胸。老年人要养成“站如松、坐如钟”的 Scientists have found that chest straightening can increase vital capacity by about 20%. Increased vital capacity, oxygen is also increased in all parts of the body, so that people are not easy to fatigue. People to the elderly, due to lower levels of sex hormones, bone growth slowed, reduced calcium deposition, osteoporosis becomes loose, it is easy to hump back thoracic. Older people to develop “stand as pine, sitting like a bell ”