Final answer:
Age regression work has been done on President Ronald Reagan, who faced public scrutiny regarding his cognitive abilities during the Iran-Contra affair. Reagan's presidency was highly visible due to his prior acting career, and this set precedents for future presidential image management through advancing media technology.
Step-by-step explanation:
The age regression work, which involves forecasting or estimating a younger visage of a person based on images from when they were older, has been conducted on various individuals, including President Ronald Reagan. Reagan, who was an actor before his presidency, was involved in a significant historical event known as the Iran-Contra affair. His administration faced criticism for its policies and incidents, which affected his public image, including speculation about age-related cognitive decline towards the end of his presidency.
Analysis of Reagan's age and appearance gained public interest during and after his time in office. Due to advancing technology in media, presidents like Reagan and John F. Kennedy achieved high public visibility, setting a pattern of presidential image management that continued into the era of the Internet and social media, as seen with later presidents such as Donald Trump, George H. W. Bush, and Bill Clinton.