Evidence checks
The evidence
Every claim we've checked, newest first. Each rating comes from the strongest evidence in people, and is updated when that evidence changes.
- TrainingResistance trainingLifting, bands or bodyweight work is linked to a longer life, and the sweet spot is surprisingly small.Works
- RecoveryCold plungesThere are real short-term effects on stress, but almost nothing on long-term health. Try a cold shower before you buy a tub.Promising
- SupplementsNMNPopular in longevity circles, safe in short trials, but there is no evidence yet that it slows ageing in people.Unproven