A new study finds people who eat a small, daily serving of dark chocolate have a reduced risk of developing Type 2 diabetes. People who ate milk chocolate did not have a lower risk. Here's why.

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After reading the science headlines this week, we have A LOT of questions. Is chocolate really that good for your health? How do solar flares affect life on earth? And what's the big deal about scientists identifying the chemical motivation for tsetse fly sex? Luckily, it's the job of Short Wave co-hosts Emily Kwong and Aaron Scott and Scientist in Residence Regina G. Barber to decipher the science behind the headlines. Hang out with us as we dish on some of the coolest science stories in this Valentines-themed installment of our regular newsy get-togethers!

Have suggestions for what we should cover in our next news roundup? Email us at shortwave@npr.org.

For years, chocolate-lovers have pointed to studies suggesting compounds in cocoa may be good for heart health. But some of the recent evidence comes from flavanol-rich cocoa, not from candy bars

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The latest evidence that a chocolate habit may lower your risk of heart disease: A study finds people who ate small amounts of chocolate several times a week had a lower risk of atrial fibrillation.