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Study: Laughter May Help Improve Short-Term Memory
Updated: Tuesday, April 22 2014, 02:05 PM EDT
A good hearty laugh may help improve short-term memory in older adults, a University study has found.
Researchers at Loma Linda University had 20 normal healthy older adults watch a funny video, distraction-free, for 20 minutes while a control group sat calmly for the same time period with no video.
Afterwards scientists performed memory tests and had saliva samples analyzed for stress hormones. Those who got in a good laugh not only scored better on the memory tests, but their levels of the stress hormone cortisol were significantly decreased.
Study authors say the act of laughter increases endorphins which sends dopamine to the brain, providing a sense of pleasure and reward, which helps both memory and recall.