All in Health

My milkshake brings all the genes to the yard

While it might not be as dramatic a superpower as being able to live four kilometres up a freezing mountain, the ability of many humans to drink milk in adulthood is certainly handy. As the story goes, the spread of this gene through populations in some parts of the world coincided with the rise in dairy farming. In turn, this enabled people to get more protein and fat in their diets, grow healthy and strong, and outcompete the non-milk drinking populations around them. But the latest research suggests that this neat evolutionary Just So story may not be true.

Kevin Mitchell: how much of our personality is innate?

Where does our personality come from? Obviously our brains have a lot to do with it, but is it genetic differences in our brains that lead to differences in how we think? Is it all in our upbringing and childhood experiences? Or is it something else? To tackle this question, we sit down with Kevin Mitchell, an Associate Professor of Genetics and Neuroscience at Trinity College Dublin and author of the book Innate: How the wiring of our brains shapes who we are.