Which can be caused by stress?
◦ Heart attacks
◦ Alcoholism and drug abuse
◦ High blood pressure
◦ Teeth grinding and stuttering
◦ Depression
◦ Emotional problems
◦ Fatigue and sleeping problems
◦ Diarrhea, indigestion, and ulcers
◦ Headaches
◦ All of the above
◦ None of the above