Studies show friends can help you live a longer, happier life—and can impact your professional success. Family is important, but if you want to live a longer — and happier — life, friends matter even more. Take for instance Shark Tank ‘s Kevin O’Leary, who just got a little misty when talking about his friend Mark Cuban.

Kevin O'Leary wasn't ready for Mark Cuban to say goodbye to Shark Tank. "I tried to turn him around on that decision because he's been part of the DNA of the show for so long," O'Leary, 70, exclusively told Us Weekly during an interview with Daniel Lubetzky.

Tears welled in Kevin O’Leary’s eyes as he recalled a time that Shark Tank costar Mark Cuban got him out of a rut. During a recent appearance on Who's Talking to Chris Wallace?, Kevin, 70, opened up about his time in the political sphere in Canada in 2017.

Shark Tank” co-stars Mark Cuban and Kevin O’Leary, aka “Mr Wonderful,” have locked horns over tariffs on China. What Happened: On Friday, O’Leary voiced his discontent with China’s trade practices on X,

LOS ANGELES, CALIFORNIA: Kevin O’Leary, best known as 'Mr Wonderful' on 'Shark Tank', opened up in a raw and emotional moment, shedding tears as he recounted how fellow shark Mark Cuban "saved" him from facing prison over a $2 million debt.

In PEOPLE's exclusive look at 'Who's Talking to Chris Wallace?', the 'Shark Tank' investor is brought to tears while reflecting on his heartwarming friendship with Cuban — even though people "pit us a

For now, the show still boasts its four remaining originals — Daymond John, Barbara Corcoran, Robert Herjavec, and Kevin O’Leary — and they aren’t showing any signs of stepping down just yet. When asked by TV Insider if he had any thoughts of retiring from the ABC show anytime soon, O’Leary, 70, revealed why the answer is decidedly no.