What does it mean to be an A?

There's nothing special about doing it in the car. It's just a personal interest. Sleep in the car. Note:

1, avoid sleeping in a parking lot with poor air circulation.

If you want to sleep in the car, you must first ensure good air circulation. If the ambient air circulation is not smooth and the car does not turn off when sleeping, the carbon monoxide generated at idle speed will easily accumulate and cannot be discharged. If introduced into the car, it may lead to carbon monoxide poisoning, and the consequences are unimaginable. If you really need to turn on the air conditioner to sleep, please be sure to sleep in a place with good ventilation.

2. The air conditioner can't open the internal circulation.

In addition to not stopping to sleep in a closed space, it is also necessary to pay attention to the internal and external circulation of the air conditioner, which is an easily overlooked point. First of all, let's talk about the difference between internal circulation and external circulation. External circulation sucks air from the outside of the car and sends it into the car through cooling or heating of the air conditioner. The internal circulation cuts off the exchange with the air outside the car, and only keeps the air inside the car circulating.

3. Keep air convection inside and outside the car.

Fresh air enters the car for people to breathe. Keeping ventilation can not only keep the air conditioner in the external circulation state, but also open the window slightly when sleeping, which will not affect the air conditioning effect in the car too much, and can also keep the air exchange inside and outside the car.

Sleeping in the car is easy to accidentally cause cervical and lumbar injuries. Generally speaking, when you meet an emergency when you are awake, your body will instinctively make an emergency response, such as muscle tension all over your body. This self-protection of the body can resist the unexpected impact of the outside world. However, if you fall asleep in the car and your body is in a relaxed state, once you suddenly brake or have an accidental impact, your body will be thrown out directly.

Even if the seat belt is used, although the body is fixed due to inertia, the head is not fixed, and the neck and head will be thrown out, which will easily lead to fragile cervical dislocation. Once the cervical vertebra is dislocated, it will cause spinal cord injury, and the spinal cord is the nerve center, which will seriously cause paraplegia and quadriplegia. If you drive fast and brake hard, someone may die on the spot.

Don't sleep in the car on a long trip, no matter which sleeping position is unsafe. The night before departure, you should ensure adequate sleep. When taking a long-distance bus, you should put a small pillow or inflatable airbag around your neck to cushion the impact of car bumps on your brain and spinal cord.