The first phase of the Unaging 2025 (Cardio Kickstart Challenge) just ended last week. 93% of the participants rated this gradual HIIT-based program 4 or 5 out of 5 stars. Here’s why:
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"No longer out of breath climbing stairs."
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"Overall pace is faster on routine runs."
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"My resting heart rate has lowered."
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"Regularity is key; motivation will come after as a natural result."
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"Stamina boost, less stress, and better sleep."
Read the full recap of the challenge here: 2025 Cardio Kickstart Challenge Completed!
