If your idea of self-care is eating paleo and running ultra marathons, I've got news for you - you're missing out.
Self-care goes way beyond the way you feed or train your body: It's about health at multiple levels. At its core it requires attention to regulating your nervous system - to regularly giving your brain and endocrine system (your body's network of hormone-producing glands) the chance to calm down and return to normal levels.
Dr. Kate Hendricks Thomas is a U.S. Marine veteran and wellness coach who writes about resilience building, creating strong communities, and the science of spirituality. You can find her new book, "Brave, Strong, True: The Modern Warrior's Battle for Balance", here.