The first book of Chinese medicine written over 2000 years ago, called the Huang Di Nei Jing Su Wen (The Yellow Emperor’s Inner Cannon), is obsessed with disease prevention. The book is full of stories of a time when people lived longer lives without diseases. The secret to staying healthy was the ability for people to live in harmony with the natural world.
I think for the modern world, this is more important than ever. We are so removed from the natural world some people barely even step outside or look up from their phones.