This book opens by examining the unique challenges women face as they enter their 50s. The author then moves into what intermittent fasting is. I liked that the author gave equal attention to both the benefits and drawbacks of IF. I think anyone who chooses a new lifestyle or diet should be informed about both the positives and negatives of that choice. The author then examines the different types of IF there is (16/8, 14/10, etc). I had no idea there were so many different kinds. I liked that the author does not advocate or promote one over another. Instead the author provides info on each one and encourages the reader to find the one that best fits their life and needs. I would recommend this book.to anyone interested in the IF lifestyle.