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.
Both nicotine and caffeine cause blood vessels. to constrict, and reduce the effectiveness of. hyperbaric oxygen therapy. We strongly advise. avoidance of all tobacco during the period of. your treatments and thereafter if at all possible. If it is not possible for you to quit tobacco or caf-.