Cigarettes’ harmful claim to fame isn’t limited to your lungs, heart, or blood vessels. Did you know that smoking is the most preventable cause of death in the US? Over 440,000 deaths per year are associated with smoking. Smoking not only cuts lives short, but it greatly decreases quality of life.
How else does smoking hurt your body? Let's take a look, so you will have a better idea.
Smoking is a leading cause of many types of cancers. Exposure to the harsh chemicals in tobacco affect the all of the body's cells.
Most cigarettes contain over 7,000 chemicals, including cyanide and formaldehyde. Nearly 70 of these chemicals are known to cause cancer.
The list of smoking-related cancers includes:
LungColon and/or rectal
Lip, mouth, pharynx,
kidneyStomachPancreaticSome types of
leukemias—cancers of the blood
By reducing blood supply, smoking weakens both muscles and bones. It also slows the production of bone-forming cells and keeps your body from absorbing calcium. Here are some of the effects:
Increased risk for bone fractures, which also take longer to healHigher complication rate after surgeries
Increased risk of overuse injuries, such as
bursitis, and a greater chance of
low back pain
rheumatoid arthritis, a progressive disease that causes joint destruction
Smoking hurts the digestive system, which means the body doesn’t get the nutrients it needs. Some digestive conditions which may be caused by smoking include: Heartburn—Injury to the esophagus allows for reflux of stomach acids back into the esophagus, also increasing the risk of esophageal cancerPeptic ulcers—High acidity levels increase the risk for an infection that leads to open sores in the stomach or small intestine, causing pain and discomfortCrohn’s disease—Leads to inflammation in the lining of the intestines, causing abdominal pain, severe diarrhea, vomiting, and weight lossAltered liver function—Changes the way the liver handles drugs and alcohol, which can lead to liver disease
Smokers notice the change in their brains almost the minute they light up. Smoking quickly changes brain chemistry, affecting mood and often leading to addiction. Brain chemistry changes, as well as decreased blood flow, increase the risk for: StrokeDementia
Alzheimer’s diseaseDepression, especially in women
Smokers are at increased risk of developing the most common type of
Here are a few of smoking’s
Reduced sense of smell and tastePremature skin aging from reduced blood flow and vitaminsIncreased risk for gum disease
Increased risk for cloudy lens in the eye, called cataract, a leading cause of blindness
Increased risk for
infertility, and problems during pregnancy and delivery
In babies of smoking mothers—increased risk for low birth weight, asthma and reduced lung function, and
sudden infant death syndrome (SIDS)
at an earlier age; increased number of menopausal symptoms
The benefits of quitting begin almost immediately. Your heart rate and blood pressure drop within minutes. Your circulation and breathing improve within weeks. And, among other improvements, your risk of
much lower after 5 years of quitting. Although it’s best to quit when you’re younger, you can benefit at
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http://www.lung.org/stop-smoking/about-smoking/facts-figures/smoking-and-older-adults.html. Updated February 2010. Accessed August 14, 2015.
Smoking and musculoskeletal health. American Academy of Orthopaedic Surgeons Ortho Info website. Available at:
http://orthoinfo.aaos.org/topic.cfm?topic=A00192. Updated May 2010. Accessed August 14, 2015.
Smoking and your digestive system. National Digestive Diseases Information Clearinghouse (NDDIC) website. Available at:
http://digestive.niddk.nih.gov/ddiseases/pubs/smoking/index.htm. Updated September 14, 2013. Accessed August 14, 2015.
When smokers quit—What are the benefits over time? American Cancer Society website. Available at: http://www.cancer.org/healthy/stayawayfromtobacco/guidetoquittingsmoking/guide-to-quitting-smoking-benefits. Updated February 6, 2014. Accessed August 14, 2015.
Last reviewed August 2015 by Michael Woods, MD
Please be aware that this information is provided to supplement the care provided by your physician. It is neither intended nor implied to be a substitute for professional medical advice. CALL YOUR HEALTHCARE PROVIDER IMMEDIATELY IF YOU THINK YOU MAY HAVE A MEDICAL EMERGENCY. Always seek the advice of your physician or other qualified health provider prior to starting any new treatment or with any questions you may have regarding a medical condition.
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