By Mayo Clinic Staff | September 18, 2018 05:16:38In the United States, the smartphone is widely recognized as a critical tool for digital health care.

According to the United Nations Office on Drugs and Crime, over a billion people worldwide use smartphones to access information and communicate with others.

However, many smartphone users are using smartphones in a way that is unhealthy and dangerous, particularly in areas of high obesity, where the use of smartphones increases risk for developing heart disease, stroke, diabetes and other health problems.

According to the U.S. Centers for Disease Control and Prevention, about 35% of Americans who are obese or overweight have smartphones in their pockets or in their handbags, and an additional 18% have one in their pocket or in the bag. In the U