Скачать или смотреть Tobacco as a causative agent for cancer, How Tobacco Causes Cancer

Tobacco is one of the most powerful and preventable causes of cancer worldwide. Whether smoked or chewed, it introduces a cocktail of carcinogenic chemicals into the body that wreak havoc on cellular DNA and biological repair systems.

🚬 How Tobacco Causes Cancer
1. Chemical Exposure
Tobacco smoke contains over 5,000 chemicals, with at least 70 known carcinogens such as benzene, formaldehyde, arsenic, and nitrosamines2.

These chemicals enter the bloodstream and reach virtually every organ, increasing cancer risk throughout the body.

2. DNA Damage
Carcinogens in tobacco directly damage DNA, the blueprint for cell growth and repair2.

Damaged DNA can lead to mutations, causing cells to grow uncontrollably—this is the hallmark of cancer.

3. Impaired DNA Repair
Tobacco chemicals also inhibit the body’s ability to repair DNA, allowing mutations to accumulate over time.

4. Chronic Inflammation
Smoking triggers persistent inflammation, which promotes a cellular environment conducive to cancer development.

5. Systemic Impact
Tobacco use is linked to at least 16 types of cancer, including:

Lung, throat, mouth, esophagus

Bladder, kidney, liver, pancreas

Cervix, colon, rectum, and even acute myeloid leukemia2

🧪 Smokeless Tobacco & Secondhand Smoke
Smokeless tobacco (chewing, snuff) increases risk for oral, esophageal, and pancreatic cancers

Secondhand smoke exposes non-smokers to the same carcinogens, raising their cancer risk significantly

🛑 No Safe Level of Use
There is no safe level of tobacco consumption. Even occasional smoking or exposure can increase cancer risk. The longer and more frequently someone uses tobacco, the greater the risk.

✅ Quitting Saves Lives
Quitting tobacco—even after years of use—reduces cancer risk and improves overall health

#Tobacco #Lungcancer