A: There are dramatic differences between the way chimpanzees live in the wild and the way chimpanzees are forced to live in laboratories. In the wild, chimpanzees live in very diverse social groups and may travel several miles in one day.
Ergonomics for Prolonged Sitting. Sitting for prolonged periods of time can be a major cause of back pain, cause increased stress of the back, neck, arms and legs and can add a tremendous amount of pressure to the back muscles and spinal discs. Additionally, sitting in a slouched position can overstretch the spinal ligaments and strain the spinal discs.
4) Inflammation in the lower back which reduces blood flow to the nerves in the spinal column. 5) Sciatic nerve entrapment (piriformis entrapment) caused from standing on concrete too much, sitting too long in one position putting pressure on the sciatic nerve or its blood supply, and aging, where muscles lose tone.