Insanity
Beachbody · Shaun T
The most intense at-home cardio program ever created. 63 days of Max Interval Training — long bursts of maximum effort with short recovery. Dramatic cardiovascular improvement, fat loss, and athletic conditioning. Zero equipment required.
Insanity is Max Interval Training, not standard interval training. Standard intervals hold you at a steady high effort with short breaks; Max Interval Training pushes you to your max effort for a long burst, then gives you just enough recovery to go again — the recovery periods get shorter as the program progresses, not longer. That's what makes 63 days of bodyweight cardio brutal even though nothing is loaded with a barbell.
Day 1 is the Fit Test, not a workout — do it before anything else. It's 8 exercises (switch kicks, power jacks, power knees, power jumps, globe jumps, suicide jumps, push-up jacks, low plank obliques), each done for 1 minute for max reps, with 30 seconds rest between. Write down every number. You retest on Day 15, Day 29 (start of Month 2 uses the same benchmark), and Day 63 — the whole point of the program is watching those numbers climb, so don't skip the retests even when you're exhausted.
A typical week in Month 1 (weeks 1-4) rotates a fixed pool of 5 sessions:
- •Plyometric Cardio Circuit — jump training and lower-body power
- •Cardio Power & Resistance — bodyweight strength married to cardio (push-ups, plank work, squats) at max effort
- •Cardio Recovery — a genuine active-recovery day: stretching and low-impact mobility, not a rest day
- •Pure Cardio — the purest test of conditioning, no strength component
- •Rest — one full day off per week (Day 7, Day 14, etc.)
Weeks 3-4 add Cardio Abs onto the end of some Pure Cardio days as core work ramps up. Days 36-42 are Recovery Week — a full week of Core Cardio & Balance, deliberately lighter than either month. Don't treat it as optional: it's programmed recovery between two brutal blocks, and skipping straight into Month 2 without it is the single biggest reason people burn out or get injured mid-program.
Month 2 (Days 43-63) swaps every session for a "Max" version — Max Interval Circuit, Max Interval Plyo, Max Cardio Conditioning, Max Recovery, Max Cardio Abs — same movement patterns as Month 1 but longer work intervals and shorter rest. This is where the program earns its name. Expect Month 2 sessions to run close to an hour versus Month 1's 30-45 minutes.
How to actually get through it:
- 1.Modify, don't skip. Shaun T cues low-impact options throughout — step instead of jump on any high-impact move if your joints need it. A modified rep at full effort beats a skipped rep every time; the program is built around effort level, not perfect form on every jump.
- 2.Hydrate and fuel like the intensity demands it. This is one of the most calorically demanding home programs that exists — most people need to eat more, not less, to complete it.
- 3.Follow the calendar order. The exercises are deliberately sequenced so muscle groups get a full day of recovery between direct-impact sessions — reordering days defeats that.
- 4.If you fail a Fit Test rep count worse than your baseline, that's a sign of accumulated fatigue, not a workout to push through — take an extra rest day rather than compounding it.
- 5.Most people see the biggest jump in Fit Test numbers between Day 1 and Day 15 — don't judge the whole program by week one. The real conditioning gains compound through Month 2.