Fitness Matters #123
Posted on 30 Jan, 2015
Girls see over 400 advertisements per day telling them how they should look.
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Human Bones are ounce for ounce, stronger than steel. Bone has been found to have a tensile strength of 20,000 psi while steel is much higher at 70,000 psi. Steel is much heavier though, so pound for pound, bone is the stronger material.
