20.如何缓解肩颈疼痛

3分钟学习一篇英语短文，每篇的坚持换来是日积月累的改变。 海绵将短文内容附在此处： How to relieve upper back and neck pain. Upper back and neck pain is very common. It's just because the upper back and the neck are both directly connected. That's a very common and problematic area. To relieve the pain in that area, we have to look at your posture -- how you're sitting, how you're walking, how you're standing, and how you're sleeping. That area is put under a lot of stress for people who do a lot of sitting, computer work, reading, and writing. What happens is that the joints in the back stiffen up, which causes the muscles to tighten up, which causes the pain. It can radiate from the upper back into your neck. To treat that, we have to correct your posture—make sure you're sitting correctly, you're sleeping correctly, and you're walking correctly. Make sure at work that your desk is set up correctly, that you're not hunched over when you work, that you're upright, and your head is on top of your shoulders. It's not leaning forward. problematic adj. 造成困难的；产生问题的 posture n.（坐立的）姿势 joints n. 接头(joint的名词复数);关节; stiffen v. （使）难以弯曲，难以活动，发僵 radiate v.辐射;发射;使向周围扩展 hunched adj. （常指因寒冷、生病或愁苦）耸肩弓身的，伏首前倾的; leaning n.（使）倾斜，屈身 lean的现在分词);倚;依赖;使斜靠;