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7 Surprising Ways Nicotine Impacts Your Body and Health

Written by SD Department of Health | May 19, 2025 8:57:48 PM

Cigarettes aren’t the only way to feel the effects of nicotine. Vapes, chewing tobacco, cigars, nicotine pouches and even hookah all deliver the same addictive chemical — nicotine.

See how nicotine can affect your entire body from brain to bones.


1. Brain

Nicotine stimulates dopamine release, causing addiction and altering your brain. Over time, it can contribute to mood disorders, memory loss, difficulty learning and cognitive decline.

2. Heart

Almost immediately, using nicotine increases your heart rate and blood pressure, contributing to a higher risk of heart attack or stroke. It also can cause inflammation.

3. Lungs

Nicotine can damage lung tissue, impair immune function and worsen conditions like asthma and chronic bronchitis.

 

Did you know?

While the nicotine drug on its own is not a proven carcinogen, it may promote tumor growth and is often delivered alongside cancer-causing chemicals. That makes it a key player in the development of many cancers all over the body.

 

4. Skin & Hair

Because nicotine affects the blood vessels, it can lead to delayed healing and accelerated wrinkles and signs of aging. Additionally, it may cause hair thinning/loss and brittle nails.

5. Bones

Nicotine in the body can cause slowed production of bone-building cells, which can be detrimental to healing broken or fractured bones.

6. Eyes

Studies have shown that nicotine can affect your eyesight and may cause cataracts and increased chances of developing glaucoma.

7. Mouth

Nicotine may cause a reduction in saliva production in your mouth, leading to dry mouth, increased risk of tooth decay, bad breath and more.

Sources: National Library of Medicine, Artistry Clinic, Rush, Optical Express, AMS Cardiology, American Lung Association, VCU Health, National Institute on Drug Abuse