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.
Nicotine changes the levels of certain brain chemicals -- particularly dopamine, which is famous for making you feel good and dulling pain. Because the nicotine in one cigarette doesn't stay around forever, you get the urge for another cigarette. However, your brain starts to adjust to those extra surges of dopamine.