https://www.inc.com/jeff-haden/exercise-scientists-say-one-23-minute-workout-a-week-is-nearly-as-effective-as-three-but-there-is-one-catch.html

I found this article on my google homepage and they mentioned fitness blender's most brutal hiit workout😂😂

BTW I've done it before and I'm with them on that one! ITS DEFINITELY BRUTAL!!!