Friday coffee break

Coffee

Every Friday at Nothing in Biology Makes Sense! our contributors pass around links to new scientific results, or science-y news, or videos of adorable wildlife, that they’re most likely to bring up while waiting in line for a latte.

From Sarah: For whales, taking in a mouthful of krill is more complicated than you might think.

A rorqual whale’s feeding lunge was “one of the largest biomechanical events on Earth”, said Dr Pyenson.

“This shows us how they do it so quickly, co-ordinating the inflation of the throat pouch with the opening of the jaws… and closing their mouth to prevent prey escaping – all in under 10 seconds.”

And from Jeremy: Will you live longer if you order an extra shot in that latte? Probably not.

During the time of the data collection (1995-2008), of the total 402,260 people, 52,515 of them died. At first blush, the risk of death (comparing the people who died to the people who didn’t and their demographics) was higher among the coffee drinkers.

But when you break it down, a large number of the heavy coffee drinkers (more than 2 cups/day) were also smokers, which is a very high risk of death in and of itself. When you controlled for the smokers, the authors got the OPPOSITE effect, this time coffee drinking (more than 2 cups per day), decreased the risk of mortality by 10% in males and 15% in females.

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