Warning: Undefined array key "visitor_referer_type" in /var/www/vhosts/wordinf.com/core/app/libraries/Core.php on line 98 Denise Austin - We use our shoulder muscles to...
We use our shoulder muscles to accomplish practically every pulling, pushing, and hoisting task we do (they really do carry the weight of the world!), so they're a great place to start building strength.