Dihexa: The Alzheimer's Disease Helping Peptide To forget. This is one of the scenarios people fear the most. At times it could be regular occurrences such as misplacing your car keys somewhere. But, it could be as horrible as forgetting who your loved ones are and even forgetting who you truly are. Alzheimer's Disease is no joke. It's one of the most feared diseases today, especially to the elderly. But, good thing a peptide has been discovered to help contribute to calming factors despite this Disease. Let's get to know more about it.