New Scientist is reporting that Portuguese researchers have discovered that small doses of carbon monoxide may hinder multiple sclerosis in mice. The scientists injected MS into their test subjects, and then placed some of the rodents in an environment where they were exposed to a limited amount of the monoxide. At the end of the experiment, the mice with CO exposure had much better mobility than the ones without. Apparently, the carbon monoxide aids in binding iron to certain molecules in the brain, which impedes the MS's progress. In any case, while the experiment seems revolutionary, scientists are quick to warn the public that in no way does this mean you should try to inhale some CO on your own, since the effects can be lethal. Click here to read more at New Scientist.