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.
Samsung has unveiled its first phone to run the Tizen operating system, called the Samsung Z (pictured). It will launch in Russia from July this year, and boasts, among other features, a fingerprint and heart rate sensor.Tizen is seen as a direct competitor to Google's Android platform.irm creates world's first smartphone to run Tizen operating system. 1  Samsung has unveiled a smartphone running the Linux-based software. 2  The Samsung Z runs Tizen and will go on sale in Russia later this year.