★★★★★
Worth it! - "44, married, two kids, and somewhere in the last five years I just went flat. Energy gone, drive gone, and I'd decided that was the deal now. This book made the case that it isn't, and it made it with actual science instead of a countdown timer and a miracle. I read it on my own, fixed a few things in the order it tells you to, and I feel like I'm climbing back. That's worth a lot more than what it cost." - David R.



