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Physical and psychological effects

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Will you please give me an article discusses the effects of optimism on physical and psychological health.(you may need to find
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2. asked by BaBa
3. 707 views
"Mission to Mars May Warp Astronauts Brains"by Nsikan Akpan One day, space explorers might stroll along the red rocks of Mars.
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2. asked anonymously
3. 26 views