For March, I continued the same diet and exercise as in January and February, except for March 20–29, when I had Spring “break” (a huge pile of grading, rewriting the book for my applied electronics class, and other administrative and course preparation tasks). I wasn’t cycling up to campus everyday, so my average exercise dropped to 4.31 miles/day of bicycling. Also, my son, a freshman at UCSB, had his Spring break at the same time, and so came home for the break. Because he is very thin (as I was at a corresponding age), his mother served a number of comfort foods while he was here, to encourage hearty eating. So I put on a little weight and am trying to lose it again.
I am at the lowest weight I’ve been since I bought the scale in 2011 and started recording my weight. Although I was losing 1.24 lbs/week in January and 0.74 lbs/week in February, I only lost 0.52 lbs/week in March. Because of this progressive slowdown, I fit an exponential decay to my weight loss, as well as the simpler linear fit. The exponential predicts an eventual minimum weight of 157 lbs with a decay time constant of 89 days. This asymptotic weight is comfortably within my target range—but if the exponential holds up, then it will take me longer than I had originally expected even to get within my target range.
During break I had a checkup with my physician, who thinks my target weight range is fine, but she’d be happy even if I just managed to maintain my current weight. Interestingly, my cholesterol was at the lowest level since I’ve had it measured (starting in 1989), and the desirable HDL was actually up. Unfortunately, I did not check the cholesterol levels before starting my diet, so I don’t know whether the low levels are due to the diet or to the rather high levels of atorvastatin (60mg/day) that I’ve been taking for the past 2 years. In any case, I’m cutting back to 40mg of atorvastatin a day, and I will check my cholesterol levels again over the summer.