Neuroscientist Moran Cerf has made a living studying how people make choices.

Turns out, humans are pretty lousy decision-makers. We fall victim to bias, let emotions cloud our judgment, and tire of making choices pretty quickly.

But Cerf has also learned that making a handful of really smart choices at the right moment can eliminate the need to make hundreds of smaller, nagging choices.

Here are Cerf's recommendations for living a happy, successful, stress-free life.