Get back to basics with the Core4 Challenge

Boost energy, restore focus, increase HRV, and go harder after your goals.

Make the most out of August by tracking four scientifically-backed activities in the WHOOP journal that help you build a healthy foundation. Plus, get up to 20% off your membership renewal.*

Here’s how it works:

1. Sign up by August 1st for the Core4 Challenge using your email.
2. Get morning sunlight, do zone 2 cardio, practice 5 minutes of breathwork, and eat within a 12 hour window or less.
3. Do at least 1 of the activities for 30 days and receive 20% off or 1 of the activities for 21 days and receive 10% off.

*To be eligible for this discount, sign up using the email associated with your WHOOP account. Free trial participants are not eligible for this discount.