Smoking is harmful to almost every part of the body and raises the risk of many diseases. It is the main cause of preventable death around the world. Not only does it affect the smoker, but it also harms people who breathe in secondhand smoke.
Here’s a closer look at how smoking impacts your health:
Respiratory System
Smoking causes damage to the lungs quickly and severely.
It leads to inflammation, makes airways narrow, and harms lung tissue. It’s the cause of 90% of lung cancer deaths and 80% of deaths from chronic obstructive pulmonary disease (COPD). Smokers often have a constant cough, wheezing, and trouble breathing.
Cardiovascular System
Smoking raises the risk of heart disease, stroke, and high blood pressure.
It harms blood vessels, reduces the amount of oxygen in the blood, and speeds up the heart rate, putting more pressure on the heart.
Cancer Risk
Cigarette smoke includes over 7,000 chemicals, with at least 69 being known cancer-causing agents.
In addition to lung cancer, smoking is linked to cancers of the mouth, throat, esophagus, pancreas, bladder, kidney, cervix, and stomach.
Brain and Mental Health
Nicotine in cigarettes makes people feel temporarily happy and relaxed, which makes smoking highly addictive.
Long-term use can lead to dependence, mood problems, and a decline in brain function.
Other Body Systems
Skin: Smoking speeds up aging, causing wrinkles and a lack of glow.
Digestive system: It increases the chance of stomach ulcers and cancers of the digestive tract.
Reproductive health: It lowers fertility in both men and women and raises risks for pregnant women and their babies.
Immune system: Smoking weakens the body’s ability to fight infections, making smokers more likely to get sick.
Secondhand Smoke
People who are not smokers but are around smoke are at risk for many of the same health problems.
Children are especially at risk, with higher chances of asthma, ear infections, and sudden infant death syndrome (SIDS).
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