Here’s a conundrum: Identical twins originate from the same DNA ... so how can they turn out so different — even in traits that have a significant genetic component? Carlos Guerrero-Bosagna explains that while nature versus nurture has a lot to do with it, a deeper, related answer can be found within something called epigenetics. 

Because we want to understand what genes are required for blood vessel development, Courtney Griffin studies certain enzymes that help turn genes on and off. These enzymes are specifically involved in relaxing DNA that is normally tightly coiled up in our cells.

THE classic

Pretty funny one-liners

Wholesome animated short

THE best mash-up video I know of.

The best sci-fi fiction series and this video explains a few aspects of why.

THE best video of WRC (World Rally Championship). Love the passion in those drivers. 

Stanford Professor Robert Sapolsky, posits that depression is the most damaging disease that you can experience. Right now it is the number four cause of disability in the US and it is becoming more common. Sapolsky states that depression is as real of a biological disease as is diabetes.