Achieve a healthier lifestyle -- physically, emotionally, socially, and sexually -- with AN INVITATION TO HEALTH, 20th Edition. In addition to integrated, up-to-date coverage of the Covid 19 pandemic, you'll find new research on such topics as happiness and health, current statistics on life expectancy and death rates, mental health and anxiety, navigating social media, Dietary Guidelines, immunization, stress levels, safer sex practices, substance abuse, dubious diets and trendy foods, fitness monitors, vaping and cannabinoids.