Sam is an accountant who is especially busy during tax season. By the end of each day he complains of shoulder stiffness and tightness, as well as some upper back pain. What might be Sam's problem, and how could he prevent the discomfort?

Incorrect posture, learn good posture habits or get ergonomical chairs

Explanation:

Incorrect posture is sitting against the appropriate posture of the body, either when writing, sleeping, eating or working. When there is a bad posture to this it affects the body system especially the spinal cord, neck, back. Incorrect posture can lead to kyphosis. One way Sam can solve this pain is by learning proper sitting or working pattern or get ergonomical chairs that assist him to sit well.

countries such as spain, france and portugal colonized the region. although most of latin america was colonized by spain, the countries of portugal and france also had major influences on the region. due to war and disease, native populations were decimated.