Which of the following is part of using proper body mechanics

Occurs when the immune system attacks the body. lupus cancer sickle cell disease huntingtons disease

The world’s richest 20 percent of the population consume about what percentage of all goods and services in a given year?

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease