To analyse the MR imaging and cognitive changes with aging, MCI and AD based on Lead Investigator: Vivek Tiwari Institution : Centre for Brain Research E-Mail : vivekt@iisc.ac.in Proposal ID : 1389 Proposal Description: 1.How does gender play a role in normal aging, MCI and AD in regards to alteration in brain structure and volume? 2. How does risk factors associated with cardiovascular disorders predispose for rapid aging or MCI and AD?