The 4-Hour Body - An Uncommon Guide to Rapid Fat-Loss, Incredible Sex, and Becoming Superhuman - Timothy Ferriss
Tracy Reifkind had lost more than 100 pounds (45 pounds of fat in the rst 12 weeks) and
won her bet. But the numbers alone don't do her physique justice: this mom of two from a two-
income family looked 10 years younger at 129.6 pounds.
The secret wasn't marathon aerobics sessions, nor was it severe caloric restriction. It was the
Russian kettlebell swing, twice a week for an average of 1520 minutes. Her peak session
length was 35 minutes.
She was introduced to kettlebells by her husband, Mark Reifkind, a former national team
coach in powerlifting who also competed against Kurt Thomas in Olympic gymnastics.
"Every woman wants Michelle Obama's arms. The truth is that you can have them, and a new
"Every woman wants Michelle Obama's arms. The truth is that you can have them, and a new
body, in four weeks. The two-handed swing is the jewel. If you could only do one movement
for the rest of your life, do the kettlebell swing."