As Trump turns 80, what's it really like to work as an octogenarian?

They work in a range of positions, including high-powered jobs like lawmakers, presidents and company executives. This year, 24 members of Congress were older than 80, including Senator Chuck Grassley, the oldest lawmaker at age 92.Several factors may be leading more people to work into their later years, ageing experts said. For one, more people have access to health care, meaning more Americans are making it to their 80s.For some, the move may be financially necessary, as the cost of living in the US continues to rise. A recent survey conducted by Indeed Flex, a job search site, says almost 30% of retirees are considering part time or temporary work. Over 60% of those who are say the rising cost of living is a factor. But about half also attribute it to a desire for more social interaction.Another reason, perhaps, is a change in attitude about age, and what can be accomplished, said Gordon Lithgow, a professor with the Buck Institute for Research on Aging."I hope that people are beginning to think, it's really who's qualified for the job, it's not what age they are," Lithgow said. "There's no question that people can function well into their 70s and potentially their 80s as well."For Harriet Newman Cohen, a 93-year-old matrimonial lawyer who still goes to court and just wrote a memoir, some of the most interesting and rewarding years of her life have been her later decades."Working has kept me young, vigorous, energetic, knowledgeable, fun," said Cohen, who has represented celebrities in their divorces, including former New York Governor Andrew Cuomo. "I just can't imagine living any other way."Health considerationsWhile being older often means being more experienced at one's job, some think it can be a liability if serious age-related illnesses - like cognitive decline and general loss of stamina - get in the way.