Tips for Keeping Healthy at the Beginning, Accidentally Lived a Billion Years

My name is Lin Chen, and I cultivate immortality just to survive. While others defy fate and change their fate, I practice "The Secret of Health Preservation" and just want to live safely to a hundred years old. Who would have thought that this dog would last for a hundred thousand years! I have sent away generations of geniuses and endured dynasties one after another. The ancient ruins that everyone is fighting for are the back gardens where I grew tired of living. The powerful ancestor of the Immortal Emperor was once a little baby chasing after me and crying for sweets. I'm just a sweeper, a teahouse owner, a fairy grass grower... In the eyes of everyone, I am just an old man in the Qi refining period who is nearing the end of his life and poses no threat. Until the great catastrophe comes, the Immortal Emperor sheds blood and the gods fall. I had no choice but to pick up the broom and slap him in the face. "Sorry, you disturbed my old man's sleep." I, Lin Chen, from a mere mortal to a supreme deity, just want to say one thing: Living is truly invincible.