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.
Withdrawal symptoms can start as early as a few hours after your last cigarette, and often intensify over the next few days. Many people continue to smoke to help prevent withdrawal symptoms. Over time, continued nicotine use produces long-term changes in the brain that cause addiction. Nicotine lozenges can help to gradually lessen your dependence on nicotine.