Doctors and lawyers are among America’s loneliest workers, followed by people who work in engineering and science, according to a survey published in the Harvard Business Review.

Researchers surveyed 1624 full-time employees on the degrees of loneliness and social support they experienced daily, both in and out of the workplace. Respondents with graduate degrees reported higher levels of loneliness than those who had completed only undergraduate studies or high school. Lawyers and doctors were the loneliest by far, reporting levels of loneliness 25% higher than respondents with bachelor’s degrees and 20% higher than those with PhDs.

“The life of a doctor is a lonely one,” Dr. Christopher Thompson, who runs the YouTube channel Student Doctor Thompson, said in a video called The Loneliness of Medicine. “Your friends have moved on.ball boys at the 1974 League Cup Final at Wembley Stadium.

Having been turned down by several professional clubs, including Newcastle United, Sunderland, Derby County and Southport, Bruce was about to start work as an apprentice plumber at the Swan Hunter dockyard when he was offered a trial by Third Division club Gillingham, whose manager Gerry Summers had seen him playing for Wallsend in an international youth tournament. He travelled down to Kent with another player from the Wallsend club, Peter Beardsley, but although Gillingham signed Bruce as an apprentice, they turned Beardsley away. At the time Bruce was playing as a midfielder, but he was switched to the centre of defence by the head of Gillingham's youth scheme, Bill Collins, whom Bruce cites as the single biggest influence