To add on to the worries of smokers developing cancer in the lung, pharynx, larynx, esophagus and other respiratory areas, there is the possibility of having alterations in their DNA as well. Studies have shown that when you smoke tobacco, you are at risk of getting tumors on your colon and MSI. MSI, or microsatellite instability, is when your genes are damaged; it also blocks the cells from being able to repair the DNA that were damaged, which can lead to cancer growths to proceed without interruption.

(more…)