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DNA has been called the building blocks of life, the blueprint that we’re born with that maps out the on/off switches for genes that are hardwired into our cells. The field of epigenetics looks at how exercise, diet, and other environmental factors can affect how those genes are expressed. Andy Feinberg, Director of the Epigenetics Center at the Johns Hopkins University of Medicine, and Carl Johan Sunderberg, a molecular exercise physiologist, discuss the latest in epigenetics research and how it might lead to new treatments. 


Can Diet and Exercise Affect Your Genes?

Ryan Rykaczewski describes one of the most massive migrations on the planet, driven by the sun. Image by Tintinnidguy (Own work) [CC BY-SA 4.0 (http://creativecommons.org/licenses/by-sa/4.0)], via Wikimedia Commons 

#ExplainTheSun  - The Largest Migration on The Planet

Once, there was the ordinary incandescent light bulb. It shone brightly, but wasted much of the energy put into it as heat. Then came the compact fluorescent. And as costs have dropped, consumers have increasingly been switching to light-emitting diode (LED) technology for many lighting applications, in an ongoing search for a more efficient bulb. Now, in work published in the journal Nature Nanotechnology, researchers report that nanophotonic devices may be able to breathe new life into old incandescent technology. Marin Soljačić and Ognjen Ilic, two authors of the study, explain how they’ve been able to “recycle” some of the incandescent bulb’s wasted heat and re-emit it as visible light, boosting efficiency.

For the Lowly Incandescent Bulb, a Ray of Hope

Science, technology, and other cool stuff from public radio's Science Friday. It's brain fun, for curious people. From WNYC Studios.

Can Diet and Exercise Affect Your Genes?

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