Investigators identify a group of cells involved in working memory

Cedars-Sinai investigators have discovered how brain cells responsible for working memory—the type required to remember a phone number long enough to dial it—coordinate intentional focus and short-term storage of information. ...


Melatonin use in children: Is a sleep aid supplement safe?

Melatonin is a hormone naturally produced in the brain that's linked to your body's sleep and wake cycle. The natural release of melatonin is stimulated by darkness and suppressed by daylight. It's also available as a supplement ...

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Hyperactivity can be described as a physical state in which a person is abnormally and easily excitable or exuberant. Strong emotional reactions, impulsive behavior, and sometimes a short span of attention are also typical for a hyperactive person. Some individuals may show these characteristics naturally, as personality differs from person to person. Nonetheless, when hyperactivity starts to become a problem for the person or others, it may be classified as a medical disorder. The slang term "hyper" is used to describe someone who is in a hyperactive state.

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