Free tools

Check in. Train up. Live human.

Short, free tools for your health, recovery and thinking. They run entirely in your browser: no sign-up, nothing stored.

Longevity & recovery

Where do you stand today?

A quick look at your habits, plus the one thing worth changing first.

AI & focus

Use AI. Live human.

AI can think for us. These tools keep your own attention, memory and creativity in shape.

All tools are free and run in your browser. Your answers are not stored or sent, unless you actively send Markus a request.

Prefer the live version?

Brain Gym, recovery and longevity as a workshop for your team, your event or your seminar week.