Fears pupils are skipping lunches and obsessively counting calories have forced one leading girls' school to ban Fitbit watches.
The popular health monitor and watch tracks users' steps and calories burnt, urging people to do at least 10,000 steps a day.
But Stroud High School in Gloucestershire has become increasingly concerned about the trendy gadget's impact on students' mental health , which they say has left girls skipping lunches.And if that doesn't work, what else do you have in mind? Forcefeeding?
Deputy headteacher, Cindi Pride, said: "There have been many reports about how excessive use of social media can have a negative impact on mental health, particularly for girls.
"And the situation is getting worse. It can have a real impact on self-esteem with people comparing themselves to others.
"We are also banning FitBits and smartwatches.
"These monitor the number of calories burned and we found that some girls would monitor the number of steps they had taken and the number of calories they had used.
"If they didn't feel they had taken enough steps in the morning they wouldn't eat lunch."That's up to them. If they are that stupidly self-obsessed (and let's face it, what teenage girl isn't at that age?) then so what if they skip lunch?
The percentage of girls who develop a serious mental disorder like anorexia is minuscule, despite the shrieking of the progressive press. What's really worrying you, the prospect of being sued?
She added: "We don't need our girls to be counting calories.
"They are young women who are fit and healthy and they do exercise and PE and do not need to be obsessed with steps of calories."If they are fit & healthy, why are you worrying unnecessarily? It's a teenage fad. They'll grow out of it.