This Is Your Brain on Nicotine
Researchers are finding strong evidence that parts of the brain are involved in gaining control over smoking and nicotine addiction, and that different areas may be important for each individual.
Two new studies examined the neural systems of people addicted to smoking and found that their brains had highly variable reactions. "One study, published online by the journal Nature Neuroscience, found that people who had a stronger brain response in certain brain regions when getting individually tailored smoking-cessation messages were more likely to quit four months later. ... The second study, published in the journal Psychological Science, also used brain imaging to watch three specific brain regions known to affect inhibition of unwanted or habitual behavior."
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A NASA astronomer explains how astronauts dispose of their, uh, dark matter.
- When nature calls in micro-gravity, astronauts must answer. Space agencies have developed suction-based toilets – with a camera built in to ensure all the waste is contained before "flushing".
- Yes, there have been floaters in space. The early days of space exploration were a learning curve!
- Amazingly, you don't need gravity to digest food. Peristalsis, the process by which your throat and intestines squeeze themselves, actually moves food and water through your digestive system without gravity at all.
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.
A growing body of research shows promising signs that the keto diet might be able to improve mental health.
- The keto diet is known to be an effective tool for weight loss, however its effects on mental health remain largely unclear.
- Recent studies suggests that the keto diet might be an effective tool for treating depression, and clearing up so-called "brain fog," though scientists caution more research is necessary before it can be recommended as a treatment.
- Any experiments with the keto diet are best done in conjunction with a doctor, considering some people face problems when transitioning to the low-carb diet.
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