I believe many people have a similar experience, always taking a nap when taking a long-distance bus, train or plane. When I wake up, I always feel unbearable neck pain and back pain. I originally wanted to take a nap to relieve fatigue, but the result was that the more I slept, the more tired I became. Next time you take a long-distance transportation, you can carefully observe the sleeping positions of nearby passengers. It is really strange, especially the posture of the neck is really worrying. I have sat on various chairs on passenger transport, high-speed trains, Taiwan railways, and airplanes, and found a common feature. The designs of these chairs are all suitable for tall people. It is very uncomfortable for ordinary stature or shorter passengers to sit on the neck. If you pay attention, you will find that the Z top part of the backrest is mostly designed like a pillow (slightly raised). Just like many ergonomic pillows on the market, it bulges. I think the intention of the initial design was to let the passengers lie down on the chair to rest and support their necks, but if you are of average stature, you will find that the raised position does not support the neck; Instead, it pushed the dipper directly to the back of the head, and it felt quite uncomfortable as if the whole head was leaning forward. Instead, there is no support behind the neck that should be supported, and there is no support for the waist.
At this time, in fact, many people will prepare a U-shaped headrest for travel and put it on the neck to sleep. But in such an environment, if you put the headrest on the back of the neck, it may put more pressure on the spine, especially friends who already have spinal problems, will feel more uncomfortable. The U-shaped pillowcase is behind the neck, but the relative position of the head is further forward. If you want to lean your back against the back of the chair, the whole person will shrink on the chair like a boiled shrimp and become a curled posture. Truly become a hunchback and bow-headed family worthy of the name. Unless the seat can recline very low (presumably only in business or first class seats). Otherwise, just maintaining this position will hurt your spine, let alone get a good night's sleep.
With the head so forward, does it seem familiar to some people? Yes! It's just swiping the phone with the head down. The weight of the head is equivalent to a bowling ball. Imagine holding a bowling ball away from the axis of the body for five minutes. Can you support it with your hands? Arms are large muscles, but almost all neck muscles are small muscles, which are not used at all. This type of rough work, the muscles and ligaments of the head are easily pulled and pulled after a period of time.
There are actually a few tricks to help you sleep easier in uncomfortable situations:
1. Use a small pillow or put a coat on the lumbar spine for support - so that the lumbar spine can be supported.
2. Put the back of the chair as far back as possible - so that the head can lie back naturally.
3. Use a U-shaped pillowcase on the front of the neck - after a deep sleep, the head can be supported in any direction.