Down To Earth
Astronauts often get kidney stones because of an increase in the amount of calcium in their blood, due to a loss of bone density in zero gravity.
posted by The Ringleader at 10:26 AM
Roll up, roll up!
Astronauts often get kidney stones because of an increase in the amount of calcium in their blood, due to a loss of bone density in zero gravity.
posted by The Ringleader at 10:26 AM
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