Aerobic capacity, which is often referred to as VO2 max, is the maximum amount of oxygen your body can use while exercising. VO2 max is an important way to measure your overall fitness and see how ...

The pupillary distance (PD) measurement is a requirement for people who want to purchase eyeglasses. Here, find out how to measure your PD using a mirror and a ruler. Share on Pinterest Some eyewear ...