Hello All, Mark is my name. I'm retired now but used to be a personal trainer at a gym. I'm very interested in health and feel it's foundational to everything else. I'm preparing for a long backpacking trip this spring and summer in the sierra nevada mountains to increase my resilience, health, and freedom. Living on trail with only what you can carry in a light backpack is a wonderful way to shed the unnecessary. Don't know where that fits into this group but I'm eager to help however I'm able.