What is the distance between the book and the eyes when reading and writing?

When reading and writing, the distance between the book and the eyes is 33 cm.

If the sitting posture is not correct, in addition to being listless, it is easy to have backache and even affect the spine and oppress the nerves. Ultimately affect your health. Correct and elegant sitting posture is a civilized behavior, which can not only reflect a person's formal beauty, but also reflect the beauty of behavior. The correct sitting posture requires "sitting like a clock", that is, sitting as straight as a clock.

Mind-reading is a very common psychological analysis skill, which is usually analyzed according to psychological theory through the words and deeds of the other party. Compared with psychological tests or divination, mind-reading is often more scientific and accurate. Because no matter how to hide and reveal, everyone will subconsciously expose the most real thoughts, even subconscious thinking activities.

In seemingly trivial or even extremely ordinary behaviors, the inner activities of the other party may be hidden. Whether in life or at work, learning to be "likable" means a big step towards success. So interested people may wish to learn one or two tricks to prepare.

There is little research on the best sitting posture. 1999 A comprehensive analysis in the United States pointed out that sitting at an angle of 100 degrees to 130 degrees on the trunk and thighs can relax the spine most.

A study published in Scotland in 2007 found that sitting back at an angle of 135 degrees is the best way to prevent back pain. Dr. Golubic said that although these studies are interesting, for most people, it may not be feasible to maintain the sitting angle so accurately.

It is not that you will hunch over after sitting for a day, but Dr. Golubic said: "If your muscles are not strong enough for a long time, your bones will be deformed. As far as I know, there is no study on the volume changes of liver, spleen and other internal organs when people sit up straight or hunchback.

But what we know is that when you hunch over, you will send a signal that makes people feel depressed and depressed. He added that when you sit up straight, "people will think that your mental state is better".