However, when you want to compare a Boolean variable with the literal Boolean value true or false, it is not necessary to do an explicit comparison, because the result of evaluating a Boolean value is that Boolean value. For example, the expressions
The nicotine in cigarette smoke is a big part of the problem. It raises your blood pressure and heart rate, narrows your arteries and hardens their walls, and makes your blood more likely to clot. It stresses your heart and sets you up for a heart attack or stroke. Know Your Blood Pressure Numbers.
Better than smoking: Nicotine gum does not increase your risk for cancer. But nicotine can increase your blood pressure. If you look at the big picture, it would be healthier choice to stay on nicotine gum instead of smoking though. Remember your support. Check out phone help at 1-800-quitnow, texting support, and more at www. Smokefree. Gov