![](https://img.livestrong.com/315x315/media-storage/contentlab-data/profile/7/15/4e9a13f637d74eb88393eaa8d0083df0.jpeg)
Justin Kompf
PH.D
Justin Kompf has been a certified personal trainer since 2009. He holds a PH.D in exercise and health sciences from UMass Boston and works at Brandeis University as a researcher in the Lifespan Developmental Psychology Laboratory.
- Author (1)