HIIT, or high intensity interval training, is one of the most popular trends in fitness right now, and often the most misunderstood. So, what is it exactly and how can you milk it for max benefits?    To give us a HIIT 101, fitness entrepreneur, Tiffiny Hall, joins Extra Healthy-ish host Felicity Harley. You’re probably familiar with the infectious energy of Tiff, the author, journalist and television personality is about to launch a new activewear range. Plus, Tiff's online health and fitness program, TiffXO, is packed with HIIT workouts.   In this episode, she discusses what she does to workout, her new activewear range, and the challenge of being her husband’s PT (FYI: this is funny).   WANT MORE FROM TIFF HALL?   Find out more about Tiff on her website, here, or follow her on Instagram.    WANT MORE BODY + SOUL?    Online: Head to bodyandsoul.com.au for your daily digital dose of health and wellness.   On social: Via Instagram at @bodyandsoul_au or Facebook. Got an idea for an episode or some feedback? DM us or host Felicity Harley on Instagram @felicityharley.    In print: Each Sunday, pick up the latest copy of the Body+Soul/Stellar flipbook inside The Sunday Telegraph (NSW), the Sunday Herald Sun (Victoria), The Sunday Mail (Queensland), Sunday Mail (SA) and Sunday Tasmanian (Tasmania). 

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