Are Some People Born Smokers?
Scientists have identified a brain pathway which, when defective, leads to an uncontrollable desire to smoke. The discovery may lead to new anti-smoking treatments.
A discovery that explains why some people cannot give up tobacco may lead to new anti-smoking treatments. Scientists have identified a brain pathway which, when defective, leads to an uncontrollable desire to smoke. It involves a component, or "subunit", of a receptor protein sensitive to nicotine. Normally, the pathway dampens down the urge to consume more nicotine when levels of the drug reach a critical level. But in some people the mechanism is faulty. The scientists, whose work is reported in the journal Nature, carried out tests on animals with a genetic mutation that leaves them without the receptor sub-unit.
Swipe right to make the connections that could change your career.
Swipe right. Match. Meet over coffee or set up a call.
No, we aren't talking about Tinder. Introducing Shapr, a free app that helps people with synergistic professional goals and skill sets easily meet and collaborate.
China's Chang'e 4 biosphere experiment marks a first for humankind.
- China's Chang'e 4 lunar lander touched down on the far side of the moon on January 3.
- In addition to a lunar rover, the lander carried a biosphere experiment that contains five sets of plants and some insects.
- The experiment is designed to test how astronauts might someday grow plants in space to sustain long-term settlements.
She met mere mortals with and without the Vatican's approval.
- For centuries, the Virgin Mary has appeared to the faithful, requesting devotion and promising comfort.
- These maps show the geography of Marian apparitions – the handful approved by the Vatican, and many others.
- Historically, Europe is where most apparitions have been reported, but the U.S. is pretty fertile ground too.
Arranged marriages and Western romantic practices have more in common than we might think.
In his book In Praise of Love (2009), the French communist philosopher Alain Badiou attacks the notion of 'risk-free love', which he sees written in the commercial language of dating services that promise their customers 'love, without falling in love'.
SMARTER FASTER trademarks owned by The Big Think, Inc. All rights reserved.