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 can stain the lips, causing them to appear darker or more coloured. Nicotine can cause vasoconstriction, and the carbon monoxide in smoke binds to hemoglobin reducing the oxygen content of the blood - if severe, these could cause a bluish tinge which might make skin look darker. Smoking is associated a loss of sensitivity to insulin.