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.
Sciatica has several possible causes. Any condition that puts pressure on the sciatic nerve can result in pain in the lower back, buttocks and back of the leg. The pressure may come from vertebral discs, bones or muscles. The causes of sciatica may be acute or chronic.