Knowing about one's genetic predisposition to Alzheimer's, such as having an A-P-E4 gene, allows individuals to enroll in clinical trials for potential treatments. Clinical trials need participants who do not yet have the disease to effectively test interventions. For individuals already experiencing Alzheimer's symptoms, the drugs being developed may not be as effective, as they primarily aim to prevent further progression rather than treat existing conditions. Being aware of genetic predisposition can contribute to progress in finding a cure and preventive measures for Alzheimer's disease.