Body mass index (BMI)

Think of your gut like that one nosy neighbor; it’s always collecting data, and it knows things. While everyone poops, not everyone follows a regular schedule. And apparently, your gut is keeping score.

A new study has found that your belly might reveal more about your brain health than your bathroom scales do, especially if you’re an older man. When it comes to dementia risk, the location of body fat, not just the amount, appears to be a factor.