Getting a good night’s sleep and other healthy habits could slow the biological ageing of your brain, potentially protecting against conditions like dementia.

These habits, known as the Life’s Essential 8 checklist, were originally intended to help people boost their cardiovascular health. They include getting the equivalent of at least 150 minutes of moderate exercise, such as brisk walking, per week and eating a healthy diet rich in nuts, fruits, vegetables and whole foods.

The…