Working memory is one of the brain's executive functions, a skill that allows humans to process information without losing track of what they're doing. In the short term, working memory allows the ...

Medications, trauma, and medical conditions can cause miosis or constricted pupils. Seek emergency help if you experience signs of a stroke, like confusion or trouble speaking. A healthcare provider ...

See more of our trusted coverage when you search. Prefer Newsweek on Google to see more of our trusted coverage when you search. The pupils of our eyes get larger when we are focusing on a task–and ...

Eye cancer can be visible in photos, but it is easy to mistake it for other conditions. Because of this, doctors often do not diagnose eye cancer until it is advanced. Eye cancer can develop in the ...

Normally, a person's pupils naturally widen (or dilate) in low-light environments to allow more light into the eye. However, in a new study, researchers reported that a person's pupils also dilate ...