Healthy habits, such as eating nutritious food, getting enough exercise, managing stress, and not using tobacco are important lifestyle choices for everyone.
People with diabetes have to be even more careful to make good choices. Poor lifestyle choices have a much greater effect on the health of someone who has diabetes than on someone who doesn't.
One of the most important lifestyle choices that a person with diabetes can make is to stay away from tobacco use.
Tobacco is especially harmful to people with diabetes. Having diabetes already increases a person's chances of having a heart attack or stroke. Diabetes that's not well controlled can damage blood vessels. Using tobacco speeds up this damage and puts people at an even higher risk for getting heart disease or having a stroke at a younger age.
Smoking also affects how the body absorbs and uses insulin. For people who take insulin shots, it can make the action of their insulin hard to predict. If you use tobacco, Kaiser Permanente has many resources to help you quit.