My first-ever backpacking trip was kind of a shit show. I carried all my supplies in a broken, black backpack that had been left behind by two Swedish Air BnB’ers I hosted, I smashed my body into a one-person tent alongside my boyfriend at night, and I had no idea what altitude was or how its effects can wreak havoc on the body. As I made my way up the well-worn trail that traverses the summit of Alta Peak in the middle of Sequoia National Park, I found myself gasping for air and stopping every five minutes to sit down or lean my unsteady body against a tree to rest. I fell in love with my first wilderness sunrise, creeping its miraculous pink fingers across the Great Western Divide, but, by the end of the weekend, I vowed to never let my body feel that terrible in the outdoors again. It was time to train.