Norwegian 4×4
Norwegian 4×4 scored 7.8 / 10 (💪 Strong recommend) on the BioHarmony scale as a Exercise Protocol → Cardiovascular. 4 rounds of 4 minutes at 85-95% HRmax, separated by 3 minutes active recovery.
Overall7.8 / 10💪 Strong recommendWorth prioritizing
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✅ Top-tier (10)
5.0 Neutral
💪 Norwegian 4×4
◄ Downside 1.85
|
Upside 3.95 ►
📅 Scored April 2026·BioHarmony v0.3
What It Is
4 rounds of 4 minutes at 85-95% HRmax, separated by 3 minutes active recovery. One of the most studied HIIT protocols with strong VO2max and longevity signal.
Upside (weighted)
Downside (× 1.4)
EV = 3.95 − 1.85 = 2.10
→
Score = ((2.10 + 7) / 12) × 10 = 7.8 / 10
Upside (3.95 / 5.00)
| Dimension | Weight | Score | Visual | Weighted |
|---|---|---|---|---|
| Efficacy | 25% | 4.5 | 1.125 | |
| Breadth of Benefits | 15% | 4.0 | 0.600 | |
| Evidence Quality | 25% | 4.5 | 1.125 | |
| Speed of Onset | 10% | 3.0 | 0.300 | |
| Durability | 10% | 4.0 | 0.400 | |
| Bioindividuality Upside | 15% | 3.5 | 0.525 | |
| Total | 4.075 |
Downside (1.85 / 5.00)
| Dimension | Weight | Score | Visual | Weighted |
|---|---|---|---|---|
| Safety Risk | 30% | 1.5 | 0.450 | |
| Side Effect Profile | 15% | 1.2 | 0.180 | |
| Financial Cost | 5% | 1.0 | 0.050 | |
| Time/Effort Burden | 5% | 3.0 | 0.150 | |
| Opportunity Cost | 5% | 1.5 | 0.075 | |
| Dependency / Withdrawal | 15% | 1.0 | 0.150 | |
| Reversibility | 25% | 1.0 | 0.250 | |
| Total | 1.305 | |||
| × 1.4 (risk asymmetry) | 1.827 |
Other interventions for Cardiovascular
See all ratings →📊 How BioHarmony scoring works
BioHarmony translates a weighted expected-value calculation into a reader-facing 0–10 score. 5.0 is neutral (benefits and risks balance). Above 5 = benefits outweigh risks; below 5 = risks outweigh benefits. Every downside dimension is multiplied by 1.4 before subtraction because harm potential is more consequential than benefit potential — the precautionary principle encoded as math.
Upside: 3.950 / 5.00
Downside (post-1.4×): 1.850 / 5.00
EV = 2.100
Score = ((EV + 7) / 12) × 10 = 7.8 / 10
