physiology.bike
From the bike to the cell. And back.
THE AUDIO COURSE

From the bike to the cell, backed by the research.

A new episode roughly every week or two.

The free library answers individual questions. The audio course connects them into a deeper, structured journey. Browse the free questions

Start here · Free

Get episode 1 in full.

What a Watt Actually Costs · 42 min

Why 290 watts at hour four costs so much more than the same 290 watts at hour one.

The science behind the ride.

This series draws on established exercise physiology and published research to connect the science with what we experience on the bike. I aim to distinguish what is well understood from what remains uncertain, and explain the mechanisms without promising shortcuts or prescribing a one-size-fits-all training plan.

Each released episode lists the papers it draws on: open it and look for “Scientific sources”.

EARLY ACCESS

Join the project.

This is a work in progress. Everything available today is included, and you'll get each new episode as I release it.

One-time payment: you get every episode, now and every one still to come.

Early-access price · The price will increase as the series grows.

Streams in your browser, no downloads. Access for as long as the series is online.

Not for you? Email yarin@physiology.bike within 14 days of purchase for a full refund.