It's called menopause brain fog and a healthy diet and exercise can help. Keep your mind sharp with cardio and make sure to feed your brain healthy foods. Eat plenty of fruits, vegetables and other foods with omega 3 fatty acids. Check your vitamin D levels, too. In a new study, women who have recently gone through menopause showed an increase in some types of platelets that can lead to blood clots, which increases the risk of effects on your brain, particularly your memory.