Related Experiment Video
Updated: Aug 19, 2026

Methods to Evaluate Cytotoxicity and Immunosuppression of Combustible Tobacco Product Preparations
Published on: January 11, 2015
Harvard report on cancer prevention. Causes of human cancer. Smoking
Abstract:
Cigarette smoking increases risk of a wide range of cancers, and early onset of smoking is related particularly to risk of lung cancer and colon cancer. The adverse effects of smoking may occur at different points in the pathway to cancer. Smoking may act early, as seen with colon cancer; it may act early and late, as with lung cancer; or it may act only late in the pathway to cancer, as seen with cancer of the pancreas. The benefits of quitting are substantial and quite rapid for cancer, particularly for cancers of the lung and pancreas.
Related Concept Videos
What is Cancer?
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of patients who died from...
Cancer Prevention
Some...
What is Cancer?
Although people have known about cancer for centuries, it was only in 1761 that Giovanni Morgagni of Padua performed a detailed autopsy of patients who died from...
Cancer Prevention
Some...
Criteria for Causality: Bradford Hill Criteria - II
Stress Prevention and Stress Management Techniques IV

