It is called the potato-chip test. Place a potato chip in your mouth and attempt to hit a shot without breaking the chip.
„The purpose of these exercises goes to the heart of the technology and why this works,“ said Bob Molhoek, president of Bite Tech Inc., which has partnered with Under Armour in the production of ArmourBite performance mouthwear. „How we respond to stress is by clenching our teeth,“ Molhoek said, citing how people will clench their teeth when angry. „When they’re stressed out or nervous, kids bit their nails or chew on a pencil. It’s a little glitch in the human body…“
Quelle: Golf Digest