A trend has taken over in China on social media platform Weibo where girls’ compare their waists to an A4 sheet of paper.
The trend involves hiding your waist behind a A4 piece of paper, if its hidden you pass.
Leading UK slimming guru, Sally Pinnegar, blasted the bizarre phenomena as “dangerous”.
She said: “Girls should be embracing great health by eating a nutritious and and varied diet and by staying active, not by comparing themselves to an inert piece of paper.
“There’s also a real danger of the onset of an eating disorder such as bulimia nervosa, as girls try to purge any food they eat so as not to gain waist size.”