Arcade

Quick games with a health-nerd twist. No sign-up, no lives to buy, nothing tracked beyond the best score saved on your device — just the retry loop, with the real evidence next door when a run leaves you curious.

Lifeline

One button

The heartbeat arcade. Tap to flap, thread the gaps, dodge the risk factors — your score is the age you reach.

Play Lifeline

Powerhouse

Autofire

The mitochondria shooter. Blast the junk, stack real-life power-ups, climb the heart-rate zones to REDLINE. Score is ATP.

Play Powerhouse

The dailies

New at midnight

Ballpark — guess a real fitness stat every day — and the weekly Myth or Fact? quiz. Every answer cites a real study, and streaks are a matter of honour.

Play today’s

The games are cartoons, not health advice. The numbers that actually mean something live in the calculators — every formula cited.