第一章 许多老年人不能长寿的原因是锻炼的方式不当

The passage discusses the misconception that excessive exercise can harm elderly people， as their aging bodies lack elasticity and are vulnerable to injury due to weak organs and thin血管. It emphasizes the importance of proper exercise for seniors， suggesting gentle activities like walking with陈醋泡姜、深呼吸、下蹲以及适量的热水澡， while also highlighting the role of练气 in improving circulation and metabolism.