socialize - v. to talk to and do things with other people in a friendly way
mortality - n. the quality or state of being a person or thing that is alive and therefore certain to die : the quality or state of being mortal
dementia - n. a mental illness that causes someone to be unable to think clearly or to understand what is real and what is not real
cardiovascular - adj. of or relating to the heart and blood vessels
postdoctorate - adj. a postdoctorate student is an individual holding a doctoral degree who is engaged in mentored research and/or scholarly training for the purpose of acquiring the professional skills needed to pursue a career path of his or her choosing.
associative - adj. of or involving the action of associating ideas or things
causal - adj. relating to or showing the cause of something