Do all levers operate with mechanical advantage

Which describes the effect of prolonged stress on blood pressure? it causes blood pressure to decrease. it has little or no effect on blood pressure. it causes the heart to pump with more force. it causes blood pressure to increase.

Warming up prepares the body for exercise in what way? a. muscularly b. cardiovascularly c. neurologically d. all of the above

Early treatment for mental illness involved because doctors believed that doing this would drain the mental illness out of the person’s body.