Kat Fu | The Longevity Vault

Free tool: My 3AM Decoder below.  It helps you identify which of 5 common patterns may be behind your 3 a.m. wake-ups & where you can start. Takes ~2 minutes.

If you’re in your 40s, 50s, or 60s and want to protect sleep, cognition, and longevity, I walk you through what’s going on under the hood.

In-depth breakdowns of:

- Sleep architecture, circadian timing, and glymphatic clearance
- How estrogen, progesterone, and testosterone relate to sleep and energy
- Labs, and patterns that matter for brain and cardiometabolic health

I’m Kat Fu, creator of The Longevity Vault and Sleep OS. I help midlife adults understand sleep, hormones, and long-term health using research-grade explanations.

📌 If you wake at 3 a.m., start with my free 3AM Decoder below. ↓