Smoking raises your blood sugar level, making it harder to control your diabetes. Smoking can cause impotence. Hard P eople keep smoking for two reasons. First, nicotine is highly addictive. Often, a person who quits smoking goes through withdrawal.
Withdrawal is usually worst the second day after quitting and usually gradually lessens.
Second, many people also become psychologically tied to smoking. It is part of the ritual of their day. It helps them wake up in the morning, comforts them when they are upset, and rewards them for a job well done. Smoking also has pleasurable physical effects. It relaxes people and perks them up.