The Guardian – Bradley Busch 
If I offered a child a marshmallow and told them that if they could refrain from eating it for 15 minutes they would get two marshmallows instead, would they be able to do it? In the early 1970s, Stanford researcher Walter Mischel and colleagues put the challenge to 92 children aged three to five, and the follow-up studies and results 20 years later have had a significant impact on how we view self-control. (more)