Word: older
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...that does not mean older Japanese are disillusioned with the institution of marriage. "For older, single men, even doing laundry or cooking is difficult," says Naomasa Saito, the head of online matchmaking service Taiyo no Kai (meaning "Circle of the Sun"). "They want to live with a woman." Likewise, "it can be boring" for women living alone, he says. "They want to provide for someone...
David Mamet has me in a rear naked choke hold, and I'm quickly losing oxygen. He has knocked me to the ground and spun me on my back, with his right arm hooked tightly around my neck. He is 24 years older than I am and quite a bit shorter, but it has been determined in less than 20 seconds that he can kick my ass. "That was very good," he says, his breathing only faintly increased as I get up from the mat and suck in air. "You moved it from a double-leg takedown to a single...
...even if you, like the mouse, are low in RbAp48, don't pin all the blame for your memory loss on your hippocampus. As people get older, their attention starts to flicker, and that plays a role of its own. The prefrontal cortex, which controls planning, organization, abstraction and forethought, is the same region that allows us to concentrate, and it starts to diminish in size well before middle age. It also begins to use the brain's fuel, glucose, less efficiently and loses about half the neurotransmitter dopamine it once had. The result of all this, says Amy Arnsten...
...faces, two of scenery--and that he wanted them to focus only on the faces. When the younger volunteers did this, they showed increased activity in the part of the brain that deals with facial recognition and decreased activity in the part that processes landscapes. Not so the older participants; they couldn't shut out the scenery and focus on just one thing. Says Gazzaley: "They are overwhelmed by interference...
Something else is going on as we get older that also impairs memory: our brains are making fewer neurons. Until a decade ago, the common assumption was that we were born with a fixed number of brain cells that die off as we age, making us, well, dimmer. That, however, is not the case. It is now known that the brain continues to produce neurons throughout the life cycle, but only in two places: the olfactory bulb and the hippocampus. And not just anywhere in the hippocampus but in the dentate gyrus, the very node that Small has identified...