Boost your body's internal ability to defend, perform, and restore with this guide to the 21 most common adaptogens and their healing properties from the team behind Four Sigmatic.

Are you suffering from chronic fatigue, anxiety, digestive, or autoimmune issues? Or are you seeking a simple way to bring whole-body health into your life with a food that is easy to integrate into your everyday routine with no muss, no fuss?

Welcome to the world of adaptogens: nutrient-dense, calorie-sparse superfoods that have been clinically proven to help your body:

• defend your immunity and gut health,
• perform through your cardiovascular and respiratory systems,
• and restore balance through your neuroendocrine system.

By definition, adaptogens are nontoxic, nonspecific (meaning they build adaptive energy rather than exerting a specific effect), and normalizing (meaning there's a balancing bidirectional effect on physiological function). Tero Isokauppila, founder of Four Sigmatic, and registered herbalist Danielle Ryan Broida guide you through the scientific mechanisms and health benefits of the 21 most powerful species of adaptogens, from ashwagandha to chaga to turmeric.

Complete with client case studies and a shopping guide, Healing Adaptogens will educate, inform, inspire, and delight, giving you the tools you need to elevate your daily routine with adaptogens.

Tero Isokauppila is the founder of Four Sigmatic, a wellness company helping people to nourish their bodies inside and out. Tero grew up in Finland foraging for mushrooms and other wild foods on his family's farm. He later earned a degree in Chemistry, Business, and a Certificate in Plant-Based Nutrition at Cornell University. Tero is the author of Healing Mushrooms, was chosen twice as one of the world's Top 50 Food Activists by the Academy of Culinary Nutrition, and has appeared in Time, Forbes, BuzzFeed, Vogue, GQ, Harper's Bazaar, and Bon Appétit. He is a sought-after speaker, featured at Summit Series, Wanderlust, WME-IMG, Google, and the Fast Company Innovation Festival. Tero divides his time between Southern California and Finland. You can visit him online at www.teroisokauppila.com.

Danielle Ryan Broida is a Registered Herbalist (RH) of the American Herbalists Guild (AHG) and the Certified Holistic Nutritionist and National Educator at Four Sigmatic. She studied Ayurveda in India, where she became a Certified Yoga Instructor. She then worked with a Naturopathic Doctor in Indonesia, where she became a Certified Raw Chef and Detox Coach. Upon completing her graduate studies at the Colorado School of Clinical Herbalism (CSCH), she opened a private practice, specializing in treatment for autoimmune conditions and chronic illness. She is the Instructor of Mycology at CSCH, and you can visit her online at www.danielleryanwellness.com.