15-44 : Your brain is need of some TLC. Your goal should be to improve your scores across the board. This may involve some major lifestyle changes. Think about which changes you can realistically make and which will have the biggest impact. You need to discuss areas in which you have a low score with your doctor or a health care professional.
45-59 : Your lifestyle needs a checkup. You need to identify key weaknesses and devote a strong effort to strengthening them, while maintaining brain-healthy habits in other areas.
60-75 : Good news ! You have a brain-healthy lifestyle. There’s always room for improvement, though, so please start working on areas where your score was not perfect.