In the past year, Facebook has made a number of changes to its platform. In addition to continuing to expand its focus on video content and live streams, the company has been testing new features on select users. These tests have included the ability to send text messages from within...

Obesity is a medical condition characterized by an excessive amount of body fat. It is a major risk factor for a number of chronic diseases, including type 2 diabetes, heart disease, stroke, and some forms of cancer. Obesity is usually defined as having a body mass index (BMI) of...