you know how you're supposed stay tight to tone up while you exercise? well i was wondering if i kept a smile on my face while i run, if that would help tone up my face? sounds logical but i dunno.. i dont wanna look weird smiling as im running if its not gonna do anything.
maybe it could work, but frowning involves for muscles than smiling. maybe if you just made funny faces while you were running, that way you include more mucles than just the smile muscles.
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