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**Welcome to Reddit's HIIT Community!** 

We are dedicated to health and wellness using the most efficient and effective methods backed by science. Our sidebar includes  AMAs, Guides, Frequently Asked Questions, Research, and Workouts for High-Intensity Interval Training.




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**[Beginner's Guide](https://www.reddit.com/r/hiit/wiki/beginners_guide)**

**[FAQ](https://www.reddit.com/r/hiit/wiki/faq)**

**[Research](https://www.reddit.com/r/hiit/wiki/research)**

**[Rules](https://www.reddit.com/r/hiit/wiki/rules)**

**[Subreddits](https://www.reddit.com/r/hiit/wiki/subreddits)**


**[Workouts](https://www.reddit.com/r/hiit/wiki/workouts)**

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**Community Chat**

Join our [Discord](https://discord.gg/Ej84WT9) to chat with other members.

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AMA | Date
:-: | :--:
[Niklas Ivarsson] (https://www.reddit.com/r/science/comments/3rvtqe/science_ama_series_im_niklas_ivarsson_coauthor_of/) | November 7, 2015
[Martin Gibala](https://www.reddit.com/r/science/comments/5u74nm/science_ama_series_im_martin_gibala_a_professor/) | February 15, 2017
[Ulrik Wisløff](https://www.reddit.com/r/science/comments/7fus15/science_ama_series_my_name_is_ulrik_wisl%C3%B8ff_and_i/) | November 27, 2017
[Izumi Tabata](https://www.reddit.com/r/science/comments/7tjvsl/science_ama_series_im_dr_izumi_tabata_a_professor/) | January 28, 2018


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Welcome to Reddit's HIIT community! We are dedicated to health and wellness using the most efficient and effective methods backed by science. We discuss everything from the philosophy to the science of training.

AMA	Date
[Niklas Ivarsson] (https://www.reddit.com/r/science/comments/3rvtqe/science_ama_series_im_niklas_ivarsson_coauthor_of/)	November 7, 2015
Martin Gibala	February 15, 2017
Ulrik Wisløff	November 27, 2017
Izumi Tabata	January 28, 2018

r/HIIT