Chris Hemsworth on increased Alzheimer's risk and Limitless returnTo play this video you need to enable JavaScript in your browser.This video can not be playedChris Hemsworth on increased Alzheimer's risk and Limitless returnCloseRead more on this story.SectionNewsPublished6 days agoShareclose panelShare pageCopy linkAbout sharingRelated topicsAlzheimer'sFollow Alzheimer'sclose panelYou are now following Alzheimer'sUpdates from your News topics will appear in My News and in a collection on the News homepage.Read description