Streets Department workers pick up residents' trash in spring 2022. (Maxine Meyer for Billy Penn and Green Philly) From Philly and the Pa. suburbs to South Jersey and Delaware, what would you like ...

Fast-twitch fibers help with explosive movements like sprinting and weight lifting. Genetics and training influence the distribution of fast-twitch and slow-twitch muscle fibers. Doing strength ...

The world is a complex place and no matter how much you think you know, there are always new and exciting things to learn.