Biden is the first sitting president to reach the age of 80. A New York Times article reveals the steps being taken by White House aides to maintain his health.
The article also reveals that Biden's aides try to schedule all his meetings between 12 noon and 4 p.m., and that on weekends they do everything possible to clear his schedule. He also eats pasta almost every day for dinner, and when he's outside the White House, there's always something to carry tomato sauce so he can eat it.