Smoking has both short-term and long-term effects which raise blood pressure. Within a few minutes of smoking, a chemical called nicotine causes a rise in stress hormones. This raises blood pressure. The more nicotine in the cigarette, the higher your blood pressure will rise.
Over time, smoking can also lead to narrowing or clogging of blood vessels (called atherosclerosis). This can cause blood pressure to go up. People who are long-term smokers have a higher chance of having this problem.
Smoking can raise your BP, so stay keep away from it and stay healthy!