Body Fat

If you have a strong bias toward data and analysis, I don’t blame you. There is something comforting in converting life into simple facts measured by numbers. Why do you think mankind started the notion of age? So my analytical reader, you have obsessed over body fat and muscle percentage for a while now. You already know that there is probably no better measure of your fitness than the amount of body fat and muscle that you have. No not even weight, as weight by itself is misleading. You also know that it is extremely hard to accurately measure both of these, even in lab conditions. Therefore when you hear about a watch that can accurately track both, naturally it stimulates interest.

Wearable technology is advancing rapidly. It now offers a watch that measures pulse wave velocity in your body. It does this by combining the measurements of arterial hardening and blood flow. This, a measure of the an electrical signal that travels through your body, indicates how your body is responding to your diet and exercise. Your weighing scale uses similar technology, except this one is on your wrist. Its not a automatic function, you need to tell the watch that you (horror of horror’s) actually want to find out what your body fat it. Once suitably instructed, the sensors go to work to do its magic.

Knowing your body fat and muscle content is vital. It is perhaps the single most reliable indicator of how well your entire fitness and nutrition efforts are paying dividends. Your goal is to reduce your body fat to within tolerance (approximately 20% for women and 10% for men). The rest of you should be muscle. Really!

Wearable technology is taking what used to be reserved for elite athletes and bringing it into our everyday lives. Of course, this also means that you step up and attempt to live the life of an athlete.


Ritesh is a born again health enthusiast and holds a Certificate in Physiology from Harvard Medical School and a Certificate in Nutrition from Tufts University.