Lots Of Fat And Sugar Can Take A Toll On Memory : Shots - Health News : NPR
Her researchers asked obese and lean people to do a memory task that's a virtual treasure hunt. The subjects had to hide something in a scene across various computer sessions, then they were asked what they hid, where they hid it and in which session.
Aging Well: Keeping Blood Sugar Low May Protect Memory
The obese people were 15 to 20 percent worse than lean ones in all aspects of the experiment. The finding confirmed what other researchers had already seen in rodents. "This really picks apart spatial, item and temporal memory, as well as, crucially, the ability to integrate them," which Cheke says is "one of the most fundamental aspects of memory."
If you're obese, she says, you might just be "10 to 15 to 20 percent more likely to not quite remember where you put your keys."