Health and wellness refer to the state of complete well being of the body, mind and spirit. Some of the important aspects of the health and wellness industry include personal care/beauty, nutrition, weight management, fitness, preventive/personalized medicine, etc. A health or wellness coach helps their clients to make sustainable, healthy changes in their life, based on that client's personal goals and lifestyle. ... Or personal trainers AND health coaches. Or you could be a health coach who also sells essential oils or other products that support a healthy lifestyle.