INDIANAPOLIS -- A dangerous new body image trend is popping up all over social media.
It involves women holding a piece of A4 printer paper in front of their waists.
The image is meant to show their waist is smaller than the 8.3 inch width of the paper.
Psychologists say the trend can cause some women to develop long-term problems.
WATCH MORE ABOUT THE A4 CHALLENGE IN THE VIDEO PLAYER ABOVE
