Christopher
@chrkliebenstein
MBA ’27 @harvard | Head of Growth @AdonHealth | Endurance Athlete | Cancer Survivor | Bavarian
The biggest thing that surviving cancer at 20 taught me? A sense of urgency. Every moment matters - don't waste your time.
If you liked „Outlive“, you will love „The Song of the Cell“ It‘s a deep dive into how cells work and written in the same style as Peter Attia, delivering abstract medical information with memorable stories.

My dentist just told me I have ”great dental hygiene“. Made my day, time to celebrate with a Coke Zero and some popcorn.
VC Investment requirements for founders if they‘re in @ycombinator - Heartbeat
ladies and gentlemen, the next Bond girl
Sydney sweeney for American Eagle.
There are 2 aging curves: 1. A linear decline in physiological resilience 2. An exponential rise in mortality risk Most interventions only shift your position within the curve, not the curve itself. That’s still worth everything.
Forget immortality. Peter Attia puts it clearly: “You’re not changing the slope of aging. But if you can add 5–10 high-quality years to your life, that’s a revolution.” Focus on healthspan, not fantasy.
Regular sauna use elevated my hematocrit levels be 2-5% - it‘s a game changer, especially for endurance athletes.
Sauna use 4–7 times/week reduces cardiovascular death by 50%. —Laukkanen et al., JAMA Int. Med., 2015
"They don't write biographies of people who have balance." - @FoundersPodcast
A friend of mine pitched me the idea of AirTags back in 2019. I told him that nobody would pay to find their keys etc. Apple launched them literally one year later. He shouldn‘t have listened to me 😅
What‘s your caffeinated beverage of choice for maximum productivity?
Watching these guys on the Tour de France absolutely destroy themselves is huge motivation.
NOCCO is a gift from the gods
If someone could deliver me a Nocco to work tonight I'll love you forever.