Arsenic and uranium are not addictive at all, and way more dangerous (do more direct damage) than heroin or nicotine.
The most addictive drugs are dangerous *just because* they are so addictive. I believe with heroin, it can simply overpower your mind and ruin your life – your health suffers largely from neglect. With nicotine / smoking, the damage is largely done by smoke inhalation / tar, and other foreign chemicals.
Sugar & junk food are very interesting to compare – mildly addictive, very low impact per dose. But the result is that they are consumed in vast quantities by lots of people, and ultimately do lots of damage “by inches.”
Latest Answers