Take care of your spine（脊柱）

The spine stands at the center of your health, providing your body with structure and support. It also contains your spine cord, a massive collection of nerves conveying electric signals from the rest of your body to your brain【小题1】

Maintaining good posture( 姿势) is one of the most important things you can do to keep your spine healthy. Proper posture means standing or sitting while keeping your spine straight, except for its natural curves. Posture comes into play even when you are asleep. Sleeping on your side puts less stress on your spine than most other positions. 【小题2】 . Especially if you work at a desk most of the day, it's important to get up and stretch regularly.

【小题3】Stretch can help the muscles around your spine relax and allow bones to shift into better arrangement. Strength exercises like pushups(俯卧撑) can also help by strengthening the muscles around your spine. However, don’t overdo the exercise, as repeated motions can strain the muscles around your spine.

Finally, your diet affects the health of your spine because many vitamins are necessary for bones and nerves. In particular, vitamins B and D are essential to keep bones healthy, so you may want to consider taking a supplement.【小题4】, so it is also helpful to do some of the back exercise outside.

Many of the actions necessary to keep your spine healthy are identical to those used to preserve your health in other ways.【小题5】