I'm Steve Castles, and I want to be honest with you — before WHOOP, I thought I was healthy. I worked out 5 days a week, ate reasonably well, and felt "fine." But I was flying blind.
The first week with WHOOP was a wake-up call. My data showed I was only getting 5.5 hours of actual sleep (despite being in bed for 7.5), my recovery was consistently below 40%, and I was overtraining almost every single day. No wonder I felt exhausted by 3pm.
I started following WHOOP's insights. I adjusted my bedtime routine, cut caffeine after noon, and — most importantly — I learned to respect my recovery scores. On red days, I'd do yoga instead of HIIT. On green days, I'd push harder.
Six months later, my numbers tell the story: sleep performance went from 53% to 85%, my HRV jumped from 39ms to 48ms, and I stopped getting sick every other month. But the real change? I have energy to play with my kids after work. That's what matters.