What heart attack is associated with each of these parts of the body?
head
arms, backjaw, shoulders, between shoulders
lungs
chest
stomach
skin

Explain how unhealthful weight loss or weight gain can lead to further weight loss or weight gain.

Which of the following is a health risk associated with ground-level ozone? a.cataractsb.skin cancerc.respiratory illnessd.all of the above

Which of the following is not a symptom of chronic fatigue syndrome a) pain in joints with swelling b) low-grade fever c) unexplainable muscle weakness or pain d) forgetfulness, irritability, and confusion