High intensity training
For cardiovascular fitness and longevity
Most of the experts we follow recommend it.
Incorporate high-intensity training like Tabata twice weekly to improve fitness, immunity, and longevity.
Who is behind it
Voices including a performance scientist with a psychology PhD, one of our sources and a credentialed coach.
How strong the research is
Mostly expert experience so far, with published research still catching up.
In their words
“Tabata training two times per week can significantly increase your VO2 max with studies showing improvements in maximal oxygen uptake by around 15% over a six week training period.”
a performance scientist with a psychology PhD
Intensity in training leads to quicker gains and benefits beyond physical results.
With care
Some of the minds attach conditions. These are worth reading before you begin.
Training fasted is a personal preference but not recommended when trying to get pregnant or for sport performance.
Talk it through
Entrain shows what the experts teach, so you can make better decisions with your own clinician. It does not diagnose or prescribe. If something is worrying you, start there.
How this reading was made
Every line here comes from a doctor, scientist or coach speaking publicly, and links to the moment they said it. Entrain listens for where independent experts arrive at the same place on their own, and shows where they part ways. Mostly expert experience so far, with published research still catching up.
None of the statements here come with a declared commercial interest. Last refreshed 23 September 2026.
Nearby ideas in training
- Gentle movementThe experts agree
- Heavy liftingThe experts agree
- Movement breaksThe experts agree
- Myofascial releaseThe experts agree
- Physical therapyThe experts agree
- Regular exerciseThe experts agree
- SweatingThe experts agree
- Zone 2 cardioThe experts agree
Keep exploring training and movement
Most recommend it
High intensity interval training
High intensity interval training is a well-supported method for boosting fitness, with proper recovery.
Most recommend it
Moderate exercise
The panel is split on moderate exercise; it can help some with weight and inflammation, but results vary.
Most recommend it
Cardio exercise
Moderate cardio supports overall health, but balance with resistance training for best hormonal support.
The experts are split
Training volume
The panel is split on optimal training volume for muscle and health.
The experts are split
Ice bath
The panel is split; ice baths help recovery but may blunt muscle growth if overused.
The experts are split
High intensity exercise
The panel is split; high intensity exercise boosts health but can backfire without recovery.