The structure provides methods that support the following tasks: 1  Converting Boolean values to strings: ToString. 2  Parsing strings to convert them to Boolean values: Parse and TryParse. 3  Comparing values: CompareTo and Equals.
Nicotine causes inflammation in the arteries, which leads to narrowing and hardening of the blood vessels. When blood can't flow freely to your brain, you're at risk for blood clots, stroke and aneurysms. Nicotine also increases your endorphins, brain chemicals that make you feel good.
The nicotine in cigarettes leads to actual physical dependence. This can cause unpleasant withdrawal symptoms when a person tries to quit. Nicotine replacement therapy (NRT) gives you nicotine â in the form of gums, patches, sprays, inhalers, or lozenges â but not the other harmful chemicals in tobacco.