Healthy eating lowers your risk of diabetes, hypertension, and heart disease, but it's not yet clear if that's true for Alzheimer’s disease as well. If you're feeling forgetful, it could be due to a lack of sleep or a number of other reasons, including genetics, level of physical activity and lifestyle and environmental factors. However, there's no doubt that diet plays a major role in brain health.
Following is a list of foods which will help you to program your super computer with more efficacy:

1. Coffee:
The caffeine in coffee stimulates the nervous system, helping a great deal in the memory functions. Two cups of coffee is an ideal dose to keep your mind from shrinking.

2. Broccoli
Getting into the technical stuff, an essential one among ingredients of broccoli is glucosinolate. Simply put, glucosinolates are compounds which prevent the effects of neurotransmitters from wearing away. 

3.  Tomato
Filled to the brim with lycopene, tomatoes are excellent in keeping your brain in good health, and in good age. Lycopene, being an anti oxidant prevents the brain cells from free radical damage, and hence the resultant neuronal damage.

4. Dark chocolates
The wonder of dark chocolates preserves your memory in two ways. First, via the caffeine which just like coffee keeps your brain agile and two, via the flavinoids which hike blood supply to your brain, causing it to work better. 

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