Tyler is a writer for CNET covering laptops and video games. He's previously covered mobile devices, home energy products and broadband. He came to CNET straight out of college, where he graduated ...

So, while it's still important to have a well-rounded core routine (more on that below), the TikTok-ers are onto something: “If you want added definition on your abdominals, [cable] crunches are good, ...