Everybody grows older, but when you’re president of the United States, the physical aging process happens a lot more quickly.
The current commander in chief, Barack Obama, started going gray just 44 days into his first term as president. While some of those grays may be natural, there’s no question having the toughest job in the world might be contributing to the aging process.
Check out how Obama, John F. Kennedy, George W. Bush and others aged in office by using the sliding images below:
Abraham Lincoln


President Abraham Lincoln seen circa 1861 and then in 1865 after the Civil War. (Credit: Library of Congress)
Harry S. Truman


President Harry S. Truman seen in 1945 and then at the end of his term in 1953. (Credit: Getty Images)
Franklin D. Roosevelt


President Franklin D. Roosevelt seen in 1933 and then in 1945. (Credit: AP)
Dwight Eisenhower


President Dwight Eisenhower seen in 1953 and then in 1961. (Credit: Getty Images)
John F. Kennedy


President John F. Kennedy is seen in 1961 and then in January 1963. (Credit: AP/Getty Images)
Lyndon B. Johnson


President Lyndon B. Johnson is seen in 1963 after being sworn in as president after the assassination of President John F. Kennedy and then in 1969 at the end of his term. (Credit: Getty Images/AP)
Richard Nixon


President Richard Nixon in 1969 and then in 1973. (Credit: AP)
Gerald Ford


President Gerald Ford is seen in 1974 and then toward the end of his term in 1976. (Credit: Getty Images)
Jimmy Carter


President Jimmy Carter is seen in 1977 and then near the end of his term in 1980. (Credit: AP)
Ronald Reagan


President Ronald Reagan is seen in 1981 and then in 1989. (Credit: Getty Images)
George H.W. Bush


President George H.W. Bush is seen in 1989 and then in 1993. (Credit: Getty Images)
Bill Clinton


President Bill Clinton is seen in 1993 and then in 2001. (Credit: Getty Images)
George W. Bush


President George W. Bush is seen in 2001 and then in 2008. Credit: Getty Images
Barack Obama


President Barack Obama is seen in 2008 and then on July 16, 2014. (Credit: Getty Images)