Four changes from re-reviewing the studies behind our life-expectancy calculator:
- Glucosamine is out. The same healthy-user bias that inflated Vitamin E in the 1990s hangs over the small group who take it consistently, and the effect was small anyway.
- Sauna no longer stacks with aerobic exercise. Longer sessions show no extra longevity benefit, and men who are already fit gain nothing statistically significant from adding sauna. It now only counts for people not doing aerobic exercise.
- Nuts is now "Nuts or Olive Oil". Near-identical dose-response curves, and a randomized trial confirmed both. A small daily dose of either captures most of the benefit; avocados probably work too, but nobody has tested them against mortality.
- The bottom tier is gone: fruits and vegetables, teeth brushing, decaf, hot peppers. All real, all under half a year each. Chicken and refined grains came out neutral, so eat them guilt-free.
Full writeup with the studies:
https://www.unaging....ulator-and-why/
