A self-assessment tool, application program and method for assisting a person or medical doctor in diagnosing the person's nutritional, functional, physical and cognitive abilities in order to suggest remedial actions. The method includes displaying results that show each of the standard cognitive and physical abilities in a sized depiction with the patient's cognitive and physical abilities shown in another sized depiction such that when the patient's cognitive or physical abilities are lower than the standard abilities, the patient's sized depiction is smaller in size than the depiction of the standard abilities, and when the patient's cognitive or physical abilities are higher than the standard abilities, the patient's sized depiction is larger in size. This allows the patient's doctor to quickly and visually determine which abilities, if any, require remedial action to try to enhance or increase the patient's abilities to thus improve the patient's further aging and quality of life.