- Briskwalking,hiking,jogging,swimming,bicycling,stairclimbing-theoptionsareendlessforcardiohealth!Thehormoneestrogenhasbeenproventoprotectwomenfromcardiovasculardiseaseandosteoporosis.Somereportssuggestthattreadmillsandothercardiomachinesactuallyovere...
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