What does your breath hold time say about your willpower?

- Tweet0
- 0
- Pin It 0
- 0
- Subscribe to RSS
Subscribe

Subject: What does your breath hold time say about your willpower?

Russian scientists developed the willpower index, which is determined with the following formula, based on your breath hold results…

To calculate your willpower index and see how you stack against others, CLICK HERE

FACEBOOK | INSTAGRAM | TWITTER

Ⓒ StrongFirst Inc. StrongFirst® and the shield are registered trademarks of StrongFirst Inc.
StrongFirst, Inc. 9190 Double Diamond Parkway, 89521, Reno, United States

You may unsubscribe or change your contact details at any time.

Subscribe

Subject: What does your breath hold time say about your willpower?