- Can’t Get Enough Carbs, That Craving Might Have Started More Than 800,000 Years Ago | New research traces the genetic underpinnings of the enzyme amylase, which helps humans digest starches and sugars https://www.smithsonianmag.com/smart-news/cant-get-enough-carbs-that-craving-might-have-started-more-than-800000-years-ago-180985297/ 13 comments science