Have you ever met someone in their 60s who looks 42? Or, maybe that person is you. Some people maintain great health well into their later years of life. This can be a result of ...

“I have a cognitive test every day,” said Biden, who would be 86 when he leaves office if re-elected in November. Trump, 78, also faced questions about his cognition when he was in office.

Biden is resistant to taking a cognitive test. Try a short one yourself. This isn’t a real cognitive test, but it should give you an understanding of how simple screenings work.

The blood test’s accuracy was highest with patients who had already progressed to dementia and was slightly lower with patients in a pre-dementia stage called mild cognitive impairment, Dr ...