Fending off germs has long been considered one of the cornerstones of good health. But what if better health and more graceful aging actually went hand-in-hand with embracing the invisible microbes living on, in and all around us? Our bodies are teeming with microscopic organisms - they impact everything from our sleep, cognition, mood, heart health and energy to the likelihood of developing dementia, diabetes and certain cancers. As groundbreaking new studies show, taking care of your microbiome can improve your health and even help prevent or reverse some of the most common age-related diseases. Father-daughter team Brett Finlay and Jessica Finlay examine the latest research on how the microbiome affects all aspects of physical and mental health - and what you can do about it. Including Australian statistics and highly practical tips, you'll discover simple steps to improve your microbiome and live a longer, healthier life.