This book chapter advances SDG #3 and #10 by outlining how both the asymptomatic and symptomatic predementia phases of AD, amyloid positivity using amyloid PET imaging could predict progression to AD dementia. Amyloid PET imaging can identify the status of Aβ deposition in the underlying AD pathophysiology, increase diagnostic certainty, and alter management. This approach could improve the diagnose and management for patients with memory loss or cognitive dysfunction.