WHY IT MATTERS: Digital Transformation

100 million rides and runs, 220 billion data points visualizing the best roads and trails worldwide.

With the explosive growth of online activity and social media around the world, the massive amount of real-time data created directly by populations of interest has become an increasingly attractive and fruitful source for analysis. Despite the limitation that social media users in the United States are not a random sample of the US population [7], there is a wealth of information in these data sets and uneven sampling can often be accommodated.

Indeed, online activity is now considered by many to be a promising data source for detecting health conditions [8, 9] and gathering public health information [10, 11], and within the last decade, researchers have constructed a range of public-health instruments with varying degrees of success.

Fine-tuning these algorithms is key to improving large-scale analysis of social media, whether the goal is to measure the caloric content of a tweet or to find the next developing news story. These technologies represent new ways of finding and understanding the conversations we're having as a country -- chatter that is increasingly moving online.

Explore the fitness and workout trends of Fitbit users, and get exercise advice from the experts in this comprehensive, interactive infographic. At Fitbit, we geek out about workouts. Feast your fitness-loving eyes on the first ever Fitbit Health & Activity Index that identifies some of the most popular activities, shifts in workout trends, and ways to stay motivated.