Ontario changes eye exam eligibility for seniors under OHIP

A free eye exam is performed on a patient at the Remote Area Medical clinic inside the Los Angeles Sports Arena on Wednesday, April 28, 2010, in Los Angeles. (AP Photo/Damian Dovarganes) A free eye exam is performed on a patient at the Remote Area Medical clinic inside the Los Angeles Sports Arena on Wednesday, April 28, 2010, in Los Angeles. (AP Photo/Damian Dovarganes)

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How the lack of gravity in space impacts astronauts’ brain

What happens to the brain when you take gravity away? According to a new study looking at astronauts both before and after space travel, that experience causes physical changes that researchers believe requires at least three years between longer missions to recover from.