It’s all about habits. Take Bernie Sanders for example. In his 80s, he’s still going strong mentally. As a psychologist, I’ve observed some habits that contribute to his mental acuity.

Bernie Sanders grew visibly ... OK, Jonathan, thanks,” Sanders tersely replied, trying to cut off the pre-taped interview with ABC’s “This Week.” Sanders then brusquely stood up and ...

Bernie Sanders (I-VT) CHARLY TRIBALLEAU/AFP via Getty Images Few understand this reality more than I do. My daughter, Rose, was serving in Israel's Border Police when she was murdered by a terrori ...

The Democratic Party’s biggest current star is an 83-year-old who has never technically belonged to it. Bernie Sanders continues to barnstorm across America, drawing tens of thousands of people ...

Sen. Bernie Sanders, I-Vt., said he approves of President Donald Trump's handling of fentanyl and border security. "I mean, I think cracking down on fentanyl, making sure our borders are stronger ...

Bernie Sanders has built one of the most durable movements in American politics. But many inside and outside of it are worrying what happens when he’s gone. Sanders, at 83, is not interested in ...

Bernie Sanders. The independent senator is injecting energy and urgency into a Democratic Party that’s politically adrift. “He’s not like a regular Democrat,” says one young supporter.

Bernie Sanders, I-Vermont, spoke to a crowd that filled Denver’s Civic Center on Friday evening, railing against billionaires and President Donald Trump while listeners chanted and nodded along.