I entitled this book "Immortal Mitochondria" because thousands of them in every one of my cells withtheir own genome make me live, grow, and function as a person with power to feel and heal. I inheritedthis old eukaryotic symbiont from my maternal mothers may be a 1000 years ago and there may me a1000 or more males and females out there with mitochondrial genome similar to mine. This biologicaltruth relates to our daily life in terms of foods we eat for energy and our vitality, our electro-magneticlife processes, life span, aging and death. As mitochondria do all this, they fuse, split, change shape,and get destroyed under their own specification of purposeful quality control.I wish to tell my readers that the mitochondrial genome talks to our nuclear genome regularly andcaring for it is critical to our health and longevity. The first chapter is about biochemistry of chemicalenergy production from glucose, the second is about "how,how often, and what kind" of foods that we should eat, thethird is about vital signs and organ failures due to failingmitochondria, and the fourth is about diseases controlledmy mitochondrial genes. The fifth chapter is an integratedsummation of all. It describes the evolution of and powerproduction by mitochondria, mitochondrial health as it relatesto aging, and the effects of how we choose to live on the healthof mitochondria. I should emphasize that "How we chooseto live" includes exercise, yoga, meditation, mindfulness,acupuncture, self-message, and even the way we use ourmind. We live by 3,750 million of these nanomagnets in ourcells and our life is all about the life of mitochondria withinus. We can live long and well only by healthy mitochondria.We must help them remain immortal by good foods.