With a memoir, it's tough to separate the book from the author. In this case, the author is Catra Corbett, a runner in search of extremes. Everything about her life needs to be extreme. When she was young, she partied all the time and began taking drugs, especially meth, to help her stay awake and party more. Her father died, her sister became a heroin addict, and Catra landed in jail on an intent to distribute charge, which was a wake-up call. In "Reborn on the Run," the author wrestles with the question of addiction. It seems obvious to the reader that addiction becomes a through-line for Catra's story. After her drug addiction, she developed an eating disorder and exercise addiction. Then she turned to running. Corbett refuses to call her ultrarunning an addiction, but it appears she needs to go farther than anyone else. She describes an addiction as something you can't stop and something that harms you, and she claims neither of these factors is true of running, but how to explain her years-long running streak or the fact that she runs until she is peeing blood or bleeding internally or her organs are in distress? The author has experienced a lot of pain and grief in her life--the death of family, loved ones, and pets; and failed relationships. To her credit, she covers these topics unflinchingly without dwelling on the negatives. What we're left with, however, is a cursory pass through Corbett's life without a lot of vivid details to make her story stand out from the plethora of recovering addict ultrarunner tales. Her experiences on the John Muir trail are described in the greatest depth, and the reader gains a true sense of Corbett's feelings of hunger, cold, thirst, and filthiness while hiking the trail. As a modest human being, I was personally put off by Corbett's need for self-promotion. It was clear that she always wanted to be the life of the party, from the early days when she was literally (with the help of drugs) the life of the party, to her later running career. She is very proud of her many piercings, tattoos, and pink hair. She wants to attract attention. She is even proud that her running with weiner dogs draws people to her. I guess the self-promotion works. Corbett is a mid-pack runner, but she managed to score a shoe contract with Hoka. Multiple times the author mentions wanting to be known as "bad-ass." She hangs out with some climbers at Yosemite, and stumbles into a short-term relationship with one because she considers the climbers bad-ass. I was just listening to a running podcast where the hosts were making fun of the whole "bad-ass" concept, and I have to agree that this seems like a silly motivation for life decisions. I personally believe in moderation and that every choice comes with a cost, but that's just me. Again, this book is of interest if you're a true fan of the sport of ultrarunning, and I think the writing of it required a lot of candidness and soul-searching by its author. I was put off by a number of typos and believe "Reborn on the Run" might have benefited from a better editor, but this isn't necessarily the author's fault.