Runner Keltie O'Connor discovered this for herself when she committed to 180 minutes of zone 2 cardio every week for a year. ...
A combination of cardio and strength training is crucial for heart health, muscle strength, and healthy aging.
VO2 max is a buzzy measure of heart health and fitness. I tried a class that promised to boost my VO2 max through cardio and breathwork. I don't typically do cardio, and I realized taking classes ...