This is not my normal beat, but I thought it might help those of us (most of us, right?) fighting fatigue. Knowing why, after all, is half the battle.

To understand more about the different types of fatigue, I spoke to Dr. Jaclyn Tolentino, a primary care physician at Parsley Health, as well as Dr. Richard Firshein, a general practitioner and insomnia specialist who runs the Firshein Center in Manhattan. Here are the most common culprits of exhaustion, and how to treat them.

I would imagine many of us fall victim to more than one of these, but the ones we likely share are #3 (stress tired) and #5 (bad sleep hygiene). Maybe a Brain Science episode on this subject is in order?