This study is for people over 45 to understand early signs of Alzheimer's disease (AD) and movement disorders like Parkinson's. We use technology like smartphones and gadgets you can wear to track symptoms from home. This helps us find changes in daily activities, which are called Activities of Daily Living (ADL), that might signal early stages of these diseases. We aim to track how these diseases progress before people show obvious symptoms. Participants need to visit memory clinics or be part of an observational study, have a smartphone, and have someone to help with assessments.

• The study uses Remote Measurement Technologies (RMTs) for assessments.
• Participants and an informant must both have smartphones.
• Consent from both participant and informant is required.