Healf Expert
Kayla Barnes-Lentz
- Longevity
- Biological Optimisation
- Women's Health
Kayla Barnes-Lentz is an expert biohacker and the world's most publicly measured woman, with a particular focus on women's health. She is on a mission to extend her longevity through science-backed protocols and simple daily habits, and share her findings with the world.
Oura Ring Gen 4 Gold
“I check my Oura ring every morning for my sleep scores, readiness, HRV and combine it all with my bio-impedance scale.”
Ra Optics – Popp Sunset Glasses
“Blue light glasses block artificial light that disrupts melatonin production, helping regulate circadian rhythm and deepen sleep quality.”
“Stress, microbes and gut integrity determine how you feel, think and age.”
Kayla Barnes-Lentz
Kayla's non-negotiables
EAT
Eating dinner early at 4pm aligns your metabolic function with your circadian rhythm — enhancing insulin sensitivity and optimising autophagy.
MOVE
Cycle-synced training aligns my movement with my body's needs.
MIND
Getting 15 minutes of sunlight first thing in the morning regulates mood, circadian rhythm and dopamine.
SLEEP
Going to bed at 8:30pm ensures my circadian rhythm is aligned and I can rest deeply.
Explore Kayla's top picks
