![Steve Rimmer show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/038/205/small/psychology.jpg)
Summary: People aren't the only ones who perform better on tests or athletic events when they are just a little bit nervous. Dogs do too. In dogs as in people, the right amount of stress depends on disposition. A new study by researchers at Duke University finds that a little extra stress and stimulation makes hyper dogs crack under pressure but gives mellow dogs an edge.