Tobacco

Science & Health

How Smoking Damages the Body: Lungs, Heart, Cancer and More

Effects of smoking on the body include lung damage, heart disease, DNA injury and cancer risk. See how cigarette smoke causes harm and why quitting helps.

Science & Health

Quitting Smoking: What Happens to Your Body and How to Quit

Quitting smoking benefits health at every age. See what happens after your last cigarette, how withdrawal works and which treatments can make quitting easier.

Science & Health

Lifestyle and Cancer Risk: What Actually Helps Prevent Cancer

Lifestyle and cancer risk involve more than personal choices. See how tobacco, alcohol, activity, infections and environmental exposures affect prevention.