Medication, clinical conditions and what we eat can all affect the way efficiency of our brain (cognitive) functions. Some foods or medication slow mental process down but many foods, lifestyle changes and even a few medications make our brain work better. To remove the harmful elements from your medical regimen, to get a handle on what activities and exercises are going to help you the most you need to stay present to the moment and professional help to prescribe the correct medication and activities for your particular situations. You need advice on what foods are going to do you the most good and which food you should avoid.
