The average age in Congress is one of the oldest in the past century; these charts explain

For the second time in less than two months Sen. Mitch McConnell had to be escorted away from microphones in the middle of a press conference. The 81-year-old Republican leader froze before a gaggle of reporters, raising more concerns about McConnell's health and ability to serve.

But it's not just McConnell whose health and age are at the center of conversation; Sen. Dianne Feinstein, 90, has struggled with her health over at least the past year. She spent nearly three months away from Congress after she was hospitalized with shingles in March and spent weeks recovering as she experienced complications from the disease. And Sen. Chuck Grassley will be 95 years old at the end of his eighth term.

Five of the oldest Senators in Congress will all be 80 or above this year. There are eight senators who are considered part of the Silent Generation (people born from 1928 to 1945), whose early adulthood was shaped by post-WWII, according to Quorum.

Third-oldest US Congress since 1789

The 118th Congress is the third oldest since 1789. The average age in the Senate is 64 years. In the House, it’s 57.9 years.

The median age of voting House lawmakers is 57.9 years, compared to the median age of the US population at 38.8 years, according to 2021 Population Estimates from the US Census Bureau.

Representatives must be at least 25 years old when they take office and senators, 30 years old.

Rep. Maxwell Frost, 25, is the youngest representative of the current Congress, followed by Rep. Alexandria Ocasio-Cortez, at 33.

How old are international leaders compared to the US?

President Joe Biden is the oldest American President, entering office at age 78, and the only US president to turn 80 while in office. He is currently the ninth-oldest national leader in the world. How does his age compare to other leaders?

The Pew Research Center found that national leaders across the globe range in age from mid-30s to 90. The youngest confirmed head of government is Gabriel Boric of Chile, 37. Paul Biya of Cameroon, 90, is the oldest national leader. The median age of current national leaders is 62, the analysis found.

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This article originally appeared on USA TODAY: Mitch McConnell is part of one of the oldest US Congress cohorts