The Food Matters Podcast · Laurentine ten Bosch

Longevity Hacks: Sleep, Nutrition & Biohacking Tips from Kayla Barnes-Lentz

·47 min·2 clips

One night of poor sleep can raise blood sugar and ghrelin.

Laurentine opens with a warm welcome and introduces Kayla Barns-Lenz as a leader in biohacking, brain health, and longevity. Kayla says her approach starts with sleep, because a solid night makes everything else easier the next day. She recommends getting to bed before 10, keeping the room cool, and not eating too close to sleep. Those basics are treated as the starting point, not the whole story. From there, the episode shifts into optimization as something lived, not just discussed. Kayla talks about strength training three times a week. She also points to VO2 max as an important longevity metric. She says she has recently added deliberate VO2 max work to her own routine. She describes it as short bursts of very hard effort followed by recovery. Traditional four-by-four intervals come up first. Then she explains how Dr. Stacey Sims shaped her thinking about women and recovery time. For women, she says, longer rest between intervals can be a better fit. That makes the workout brutally uncomfortable, but also especially useful. The conversation ties that intensity to heart health. It also links it to mitochondrial biogenesis. Kayla frames hard training as a way to build new mitochondria and clear out damaged ones. The show keeps turning physiology back into everyday language. Laurentine responds with curiosity and steady questions rather than getting in the way. The episode also touches on hormones and cortisol. Kayla notes that intense exercise can raise cortisol, but a healthy body should bring it back down fairly quickly. She stresses starting slowly if someone is not already adapted to that level of strain. One day a week is enough at first. The tone stays practical even when the science gets dense. Kayla points to her ring data as a rough sign of change. She mentions a cardiovascular age shift as one sign that the protocol is working for her. The conversation is not about chasing numbers for their own sake. It is about finding habits that support energy, resilience, and long-term health. The episode closes by pointing listeners toward LYV Wellness and the telemedicine access she offers. Laurentine thanks her for the interview and invites listeners to keep following Food Matters for more conversations like this.

As heard by us

A practical longevity episode that treats sleep as the main lever.

Kayla Barns-Lenz frames sleep, food timing, training, and bedtime habits as one connected system, which gives the episode a steady practical edge.

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Why you'd press play

You want a sleep-first longevity playbook with usable habits.

Read the full recommendation in PlayNext →

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