We all know what happens when there’s an energy crisis: chaos. One small issue triggers a domino effect.

That’s what happens when you can’t maintain your energy. It can eventually lead to a major short-circuiting of your energy system. These massive drops are ultimately an energy crisis in your body.

There are many culprits. Some are excessive stressors and not enough sleep. Others are too much saturated fat and sugary foods. Or you may not be experiencing enough passion and fun. If you feel like you don’t have enough energy, ask your doc to explain your results for the following tests.

Your doctor can order routine blood tests to measure many of these functions. Your history is a big part of your diagnosis, but the tests on the following pages can aid your doctor.

QUIZ: Are You Feeling Stressed?