Study suggests you don't need to drink 8 glasses of water a day

CHICAGO - The idea that we need eight glasses of water a day may not be accurate after all.

Researchers at the University of Wisconsin Madison found there are many factors that go into how much water you actually need.

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Men need the most water in their 20s, while a woman's water needs vary from their 20s to their 50s.

Your environment and activity levels also effect your water intake needs.