Ever wonder why you see “stars” if you are in a submission in BJJ or if you hit your head?
Check out this clip with @hubermanlab and @lexfridman to find out what exactly happens!
Please use the code “JITSEASY10” for all your DVD & Digital Download orders at Digitsu bit.ly/2S9kMg4 to get 10% off (and help my channel out)! Thanks for the support 🙏
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