After the stress test, your cardiologist may or may not opt to have you undergo another type of CT test called a Calcium-score Screening Heart Scan.

FORBES: My Visit with a Cardiologist, and What You Should Know About Your Heart

Several companies in America scan their employees' e-mail for unpleasant or disloyal material, or test them to see if they have been taking drugs.

ECONOMIST: Doing well by doing good