7. Get A Blood Test
It is critical to know your deficiencies. You could workout 10 times harder than your training partner, but if your iron is low you will just run yourself into the ground. This test takes a few minutes and can save you plenty of time and energy.
Iron is required to produce hemoglobin—the “transport system” in our red blood cells that is responsible for carrying oxygen from our lungs to our muscles. Be sure to have your hemoglobin and ferritin serum levels checked.