Suicide rates for teens rose between 2010 and 2015 after they had declined for almost two decades, according to data from the federal Centers for Disease Control and Prevention.
Researchers then looked at the survey data to see if there was a link between the amount of time minors spent in front of screens and the mental health symptoms.
-In 2015, 36 percent of all teens reported feeling desperately sad or hopeless, or thinking about, planning or attempting suicide, up from 32 percent in 2009.
Psychologists have found an increase in suicide rates in American girls aged 13 to 18. Also, the number of girls reporting symptoms of severe depression increased by 58 per cent.
-Teens' use of electronic devices including smartphones for at least five hours daily more than doubled, from 8 percent in 2009 to 19 percent in 2015.
After noticing that teens spent more time on their screens in their leisure time, she advised people to "stop thinking of smartphones as harmless". Recent teen suicides have been blamed on cyberbullying, and social media posts depicting "perfect" lives may be taking a toll on teens' mental health, researchers say. When I first saw these sudden increases in mental health issues, I wasn't sure what was causing them'.
Are you in the habit of spending more time on cellphones, tablets or playing computer games? Between 2010 and 2015, teenagers spent more time on electronic devices and less time on other activities.
Study author Jean Twenge, professor of psychology at San Diego State University said: 'These increases in mental health issues among teens are very alarming.
Twenge concluded that limiting screen-time to one or two hours per day would statistically fall into the safe zone for device usage. They found that doing activities like sports, exercise, homework, attending religious services and interacting with others in-person are linked to fewer depressive symptoms and suicide-related outcomes.
"Teens are telling us they are struggling, and we need to take that very seriously", Twenge added.