To restart your Fitbit Alta, you'll need to use an official Fitbit charger, and press an easily missed button on the USB end of it.

You can easily change km to miles on Strava with a few clicks or taps on a computer or mobile device. Here's how.

Research featuring Carr Center's Erica Chenoweth. Nonviolent protests are twice as likely to succeed as armed conflicts – and those engaging a threshold of 3.5% of the population have never failed to ...