If the smell of diesel exhaust isn't enough to make you avoid getting a lungful, new research now shows that even a short exposure to the fumes can affect your brain. A study published in the open access journal Particle and Fibre Toxicology reveals that an hour of sniffing exhaust induces a stress response in the brain's activity.
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A brain circuit that underlies feelings of stress and anxiety shows promise as a new therapeutic target for alcoholism, according to new studies by researchers at the National Institute on Alcohol Abuse and Alcoholism (NIAAA), part of the National Institutes of Health (NIH).
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Avoiding the severe pain, nausea, agitation, sweats and other symptoms of opiate withdrawal are among the many reasons addicts are motivated to continue taking drugs. Now, researchers have found that disrupting the brain's stress-response mechanism exacerbates behavioral in mice, and that giving the mice the hormone corticosterone alleviates those symptoms. The researchers said their findings suggest new approaches to reduce withdrawal symptoms.
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