The causes of plantar fasciitis are not entirely clear. Risk factors include overuse such as from long periods of standing, an increase in exercise, and obesity. It is also associated with inward rolling of the foot and a lifestyle that involves little exercise.
The Samsung Galaxy S4 is an Android smartphone produced by Samsung Electronics and was first shown publicly on March 14, 2013 at Samsung Mobile Unpacked in New York City.
The company still has ambitions for its operating system, despite Tizen's rocky history. Samsung showed off a prototype Tizen TV at the 2014 Tizen Developer Conference in San Francisco. The company says all its 2015 smart TVs will run the OS. Nate Ralph/CNET.