It has been known for years that eating too many foods containing “bad” fats, such as saturated fats or trans fats, isn’t healthy for your heart. However, according to new research from Brigham and Women’s Hospital (BWH), one “bad” fatsaturated fatwas found to be associated with worse overall cognitive function and memory in women over time. By contrast, a “good” fatmono-unsaturated fat was associated with better overall cognitive function and memory.