Video: Nik Wallenda preparing for walking across the Grand Canyon on Discovery Channel

Last June 23, 2014, Nik Wallenda became the first person ever to cross the Grand Canyon on a tightrope. A couple of weeks before his world-record walk, Dr. Chaudhari was invited by Discovery Channel to perform several tests on Nik at his practice facility in Sarasota, Florida to try to figure out if Nik is a physical “freak of nature” or if he’s just a regular guy with incredible mental focus and skills borne of 10,000+ hrs of practice. See a clip of the testing and Nik’s practice regimen here: USDSC_06-23-2013_21.10.36 (15MB WMV file, downloads to desktop)

@NikWallenda tweeted this photo on June 13, 2014.