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Four weeks, four science-backed fundamentals that will get you back to feeling your best. Plus, get up to 20% off your membership renewal.

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.

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