DNA damage

A new study suggests that people who get an alcohol-induced red flush may see more DNA damage than those who don't.
We know firsthand smoke is bad, and we know secondhand smoke is also bad. But now, researchers have found that thirdhand smoke - the surface-clinging residue left over from secondhand smoke - can also cause damage to our DNA.
"DNA comes in double strands, and has the shape of a twisted ladder," said researcher Lennart Mucke, a neurologist and neuroscientist