Performance is not indicative of cognitive health and not predictive of future performance or medical conditions. Various factors may affect performance, including sleep, tiredness, focus, and other social, environmental, or emotional factors. Staying Sharp games are intended for entertainment and recreational purposes only. Features including the Cognitive Assessment and Lifestyle Check-Ins, Additional Tests, exercises, and challenges assess performance at a particular moment in time on certain discrete cognitive tasks. Nothing in the service should be considered, or used as a substitute for, medical advice, diagnosis, or treatment. Staying Sharp is based on a holistic, lifestyle approach to brain health that encourages users to incorporate into their daily lives activities that are associated with general wellness. Legal Disclaimer : Staying Sharp, including all content and features, is offered for informational purposes and to educate users on brain health care and medical issues that may affect their daily lives.