Eating junk food could cause brain damage - according to a new Australian study. And they noticed the brain damage after just one week of eating junk food..
The study found a short term diet that is high in fat and sugar can affect a person's memory and cognitive ability.
In the study, rats had a hard time recognizing specific places and noticing when things were moved.
Scientists say the mice also showed signs of inflammation in a part of the brain linked to spatial memory.
Inflammation is a key link to many serious ailments like heart disease, cancer and Alzheimer's disease.