![RNZ: This Way Up show](https://d3dthqtvwic6y7.cloudfront.net/podcast-covers/000/011/584/small/this-way-up-with-simon-morton.jpg)
Summary: Dirk Trossen of Cambridge University is working on a really smart smartphone that can tell when you're getting stressed out.
Summary: Dirk Trossen of Cambridge University is working on a really smart smartphone that can tell when you're getting stressed out.