Peter Drucker, the godfather of modern business management, once said, “You can’t manage what you can’t measure.” Now I don’t think that Peter Drucker did Brazilian Jiu-Jitsu (or any other form of martial arts) but the idea of measuring things in order to improve them applies to every field of athletic endeavour. So let’s look at some concrete ways that we might quantify our training and improve the results we are getting… Quantifying Your Nutrition Nutrition is a fairly complex field but there are certain tenets that most thoughtful people agree on. For example, almost everyone agrees that you should drink enough water but not too much water. But most athletes still drink way less water than they should be. For me the problem is even worse… I’m a kidney transplant recipient which means I only have one kidney that needs to remain well-flushed.  Furthermore I exercise a lot which means that I’m sweating out a lot of fluid. To stay well hydrated I have to drink about 4 to 5 litres of water a day, which is roughly 1 to 1.5 imperial gallons. There’s no way I would end up drinking that much if I didn’t measure it.  Trying to reconstruct the amount of water that passed my lips based on half remembered sips from glasses and water fountains would be totally inaccurate. So I have a very simple method that I’ve stolen from the bodybuilders… In the morning I fill one of those large 4 liter water jugs with water. And by the time I go to bed it has to be empty. There’s no second guessing about how much water did or didn’t get drank that day.  It’s binary, either “Yes, the jug is empty“, or “No, the jug still has water in it.” This system is a method of quantification.  There’s no thinking required, so I can that mental energy for other, more important functions. Another example of quantification being critical is the experiment I did with the keto diet. In 2019 I tried the keto diet for a month. At the end of that I felt physically alright, but the data said different. My LDL and triglycerides had skyrocketed, my HDL to LDL ratio had crashed. 30 days of a diet with huge amounts of whipping cream and saturated fat was basically guaranteeing a heart attack within a year. This is NOT to say that keto is bad for everyone; it most certainly does work for some people but it also doesn’t work for me. But the point is that you need measurements, bloodwork, and data to know for sure. So if you’re going to try a new diet – keto, carnivore, vegan, whatever – don’t just rely on some podcast or Youtube video for your information.  What worked for that person may not work for you. Please, please, PLEASE go get the relevant bloodwork before you start a new diest to get a baseline, and then again after 1 to 2 months of being on it. Without that bloodwork data you’re flying completely blind. With quantification you can see what’s actually going on in your veins and arteries, hopefully avoiding a disastrous mistake. That which can be measured can be improved. Quantifying Your Strength and Nutrition Every serious athlete tracks their strength and conditioning, and the more serious the athlete the more minute the data they track. There’s a reason that Mikaela Shiffrin, one of the greatest skiers of our time, tracks not only the weights, reps and sets of her squat workout but also the actual velocity that the squat bar moves at. For people at her level the coaches use the ridiculous amount of data generated to track the progress of their athlete. Now for most of us that’s too much, but we could all do with a little tracking of workouts. For example, I’ve kept a training journal for the last 25 years in which I’ve tracked nearly every strength and conditioning workout I’ve ever done. From that journal I know that on March 17, 2009 I did the following workout… 8 circuits of  bench pressing 155 for 6 reps, followed by pullups to failure, followed by sprinting up and down 6 flights of stairs, Then 3 sets of standing dumbell curl and press exercise in which I did