One. What should I do if the legs of the children's chair are not touching the ground?
1. If using adjustable-height chairs, adjust the chair to a height suitable for the child. The chair height should ensure that the child's feet can rest naturally on the floor when seated, with the child's lower leg and upper leg forming a right angle or slightly less than a right angle. This means the chair height should be approximately equal to the child's lower leg length.

2. If the chair has a fixed height, it is recommended to replace it. If replacement is not desired, a small stool can be placed under the child's feet. Sitting on chairs that are too high can have a significant impact on a child's body.
Two. What are the negative effects of children's chairs being too high?
1、Chairs with inappropriate seat heights can have a significant negative impact on the body. Prolonged sitting can lead to children developing a hunchback, kyphosis, and nearsightedness.
2. When purchasing tables and chairs in stores, we often find that most sets are designed to be used together. This is because the height differences between the pieces are carefully considered. If different tables and chairs are combined, it can result in the seating height being too high or too low, which can be uncomfortable for prolonged sitting. If the height is too high, it can lead to poor posture and potential back problems.
3. If the height difference between the table and chair is small, our eyes will be too close to the objects we are viewing, which can lead to nearsightedness over time. Therefore, I recommend choosing matching tables and chairs when purchasing, which will have significant benefits for our health. In addition, many tables and chairs now have adjustable heights. Before working or studying, we can adjust them to a comfortable height, which will greatly benefit our health and productivity.
4. Even with these precautions, we should also avoid prolonged sitting at the computer desk, which can cause significant damage to our spine and eyes. We should learn to alternate between work and rest, taking breaks every one to two hours to stand up and relax. This is the best way to protect our bodies. We should also pay attention to adjusting our posture, as incorrect posture can cause significant harm to our bodies. We should also actively exercise to strengthen our body's resistance. Therefore, choosing a chair with the appropriate height is very important.