Happy gas is no laughing matter when to comes the ozone layer

Tuesday, 1 September, 2009

I’m not sure that my dentist would approve of me cancelling visits on the basis I’m trying to reduce my nitrous oxide footprint, but given that happy – or laughing – gas emissions are having a damaging effect on Earth’s ozone layer it might be time to consider curtailing the use of the gas. Or going to the dentist if you’d prefer to go that route.

“Right now, nitrous oxide is the most important ozone-depleting gas that is emitted,” says A. R. Ravishankara of the US National Oceanic and Atmospheric Administration, lead author of the new research. “It will continue to be so unless something is done.”

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Redheads and dentists, I only feel the pain when I see the bill

Friday, 14 August, 2009

Redheads are more susceptible to pain during dental procedures? While I’m not saying they are particularly enjoyable, I can’t say they’re especially unpleasant experiences. Surely the most painful part of the whole process is having to pay for it afterwards.

The idea is that the same gene variant that leads to red hair also – for some reason – makes people more susceptible to pain, and less receptive to the common anesthetics that a dentist might use before pulling out a drill. The end result: Redheads dread their excruciating dental work, while others just get numb cheeks – a minor inconvenience.

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