Kayla Itsines, the "instafamous" fitness trainer, uses social media to not only strengthen her brand but also create a support group and community of followers who lead healthier lifestyles through her 28-minute workout circuits.
Read MoreKayla Itsines, the "instafamous" fitness trainer, uses social media to not only strengthen her brand but also create a support group and community of followers who lead healthier lifestyles through her 28-minute workout circuits.
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