Most research on memory loss in the elderly focuses on dementia, Alzheimer's disease or other brain diseases.
But neuroscientist Emily Rogalski from Northwestern University's Feinberg School of Medicine knew there is great variation in how good memory is in older people. Most have memory loss to varying degrees, but some have strong memories, even well into old age.
Same-sex marriage got huge headlines at the Supreme Court last month, but in the world of science and medicine, the case being argued on Monday is far more important. The lawsuit deals with a truly 21st century issue — whether human genes may be patented.
The intersection of Crenshaw Boulevard and 28th Street looks like a lot of intersections in Los Angeles: There's a Taco Bell on one corner and a strip mall with a liquor store and a Liberty Tax Service office on the other. And out in front, as traffic speeds by, 27-year-old Robert Oliver is hard at work — dancing.
"So, chest movements like this, this is called bucking," he says. His chest bounces to the beat. His Bluetooth headphones are on. And his feet glide across the hot sidewalk like he's on ice. "I come up in here and I go down, and that's called a kill-off."