If you had asked 25-year-old Casey whether you needed cardio if you were already strength training, I probably would have laughed and said, "Nope."

Lift heavy. Build muscle. Get stronger. Problem solved.

At 37, my answer is a little different.

While I still believe strength training is one of the most important things you can do for your health and longevity, I've come to appreciate the benefits that cardiovascular training brings to the table. Today, I think most people should include some form of cardio alongside a solid strength training routine.

ArticlesCasey LeeJune 16, 2026cardio training, strength training, exercise routineComment