AARP Eye Center
To allow users to control information sharing with advertisers, and keep those advertiseRd from interacting with you, in theory.
Like with Trump and the whole Cambridge Analytics debacle.
Presently this tool is being used in Korea, Ireland and Spain.
https://www.hackread.com/off-facebook-activity-tool-data-collected-by-websites/
Instructions for usage, and what tools do as well as , total deletion of account if you so, desire are listed in all highlighted links in article.
Too much information to even attempt an easy answer in plain English.
Froze
"I downloaded AARP Perks to assist in staying connected and never missing out on a discount!" -LeeshaD341679