A study from the Northwestern School of Medicine shows the more an older woman weighs, the worse her memory is.
Researchers gave 9,000 women aged 65 to 79 a memory test and examined their body mass index.
They found a woman's memory decreased as her BMI went up and memory scores dropped even more for women with thicker waists.
Researchers say the study could provide further guidance for doctors to help their obese patients.
