How smoker's breath saved this caterpillar's life

Meet the tobacco hornworm, a caterpillar that regularly eats tobacco leaves loaded with nicotine. Research now shows this little bugger has a strange and unique defense against hungry spiders: It "puffs out" nicotine, creating a kind of toxic bad breath. » 12/30/13 1:20pm 12/30/13 1:20pm

This is what your brain on drugs really looks like

Scientists this week published a study that reveals what the human brain looks like under the influence of psilocybin, the hallucinogenic chemical found in magic mushrooms. » 1/25/12 9:05am 1/25/12 9:05am

Nicotine patches won't help you quit, but they might save your brains

People attempting the arduous task of quitting smoking often turn to "nicotine replacement therapies" like patches and gum. These help with the physical aspect of withdrawal and the whole "quitting the actual smoking" part. Well, that's the theory anyway. According to a new study published in the journal Tobacco… » 1/13/12 8:45am 1/13/12 8:45am

Nicotine and alcohol addiction linked to a common enzyme

Cigarettes and booze are either two crippling addictions that often go hand in hand, or two great tastes that taste great together, depending on who you ask. People who have problems with both are often labelled "addictive personalities" but it turns out there might be something in our brain chemistry that ties both… » 9/16/11 6:40am 9/16/11 6:40am

Why does nicotine help you lose weight?

Apart from its laundry list of negative consequences, smoking is known to do one or two good things for you — it'll help you lose weight, and there's some evidence it can prevent Parkinson's. New research has picked apart just how nicotine helps keep you skinny, potentially opening the way to new weight loss… » 6/09/11 4:12pm 6/09/11 4:12pm

How many groups reached the Americas before Christopher Columbus?

In 1492, Christopher Columbus landed in what is now the Bahamas, changing the world forever. But was he first non-indigenous person to reach the Americas? Vikings got there before him, and possibly Polynesians too...and those are just the sane theories. » 3/30/11 9:22am 3/30/11 9:22am