Diet fizzy drinks could be contributing to one of the most common mental health conditions in the world, scientists have said.
An artificial sweetener used in sugar-free drinks and food has been linked to anxiety after a recent study carried out to test its effects on the brains of lab animals.
Researchers at Florida State University say they tested the put aspartame in mice's drinking water, only to find they began to display anxious behaviour while the part of their brains linked to anxiety and fear changed.
