Answer:
Although not fully understood, low back pain problems are usually linked to two areas: 1) lifestyle, which includes stress, lack of exercise and poor posture, and 2) physical injury or disease. Stress can be a precursor to low back pain by upsetting your nervous system, causing your muscles to go into spasm.
Explanation:
For ages 6-7 maybe hard for 2-5 years because of their body
Answer:
The hip bone, the os coxae,
Explanation: