Empowered patients have been sharing different health parameters such as sleeping habits, diets, blood pressure, etc. with each other in San Francisco for years. I’m talking about Quantified Self, one of the most interesting health-related projects ever. This and other similarly outstanding fitness tools and solutions are collected in Webicina’s Fitness and Web 2.0 guide.
Let’s see other examples as well. Here is Weight Watchers, a community site for those who would like to lose weight by the help of others. They have been assisting millions of people for 45 years.
When it comes to medical search engines, WolframAlpha lets you compute body-mass index or how much calorie you can burn during different types of exercises.