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    • Why testosterone matters for longevity

      AOL· 5 days ago

      Testosterone is a critical hormone for men, and clinically low levels are associated with medical problems that reduce your health span and life span, including diabetes, metabolic syndrome, ...

    • How traffic noise hurts children's brains

      How traffic noise hurts children's brains

      BBC News· 2 days ago

      As awareness grows of the toll noise has on children's health and learning, some cities show the way to quieter roads and classrooms. In a New York...