Eat for the long haul

Like machines, our bodies must have the proper fuel to function. We need to drink lots of water, eat at least five helpings of fruits and vegetables daily, take a multivitamin, and talk to our doctors about additional supplements we may need. Above all, we should not go long periods without eating: low glucose levels in the blood may be responsible for some dementia in later life. We can stay lean with physical activity and balanced eating, rather than dieting.