Long-form analysis at the intersection of AI and life sciences — all spells, sorted by time.
Why some run marathons at 70 while others need dialysis at 50: Nature Aging shows the same mitochondrial mutation triggers opposite fates in two kidney cell types.
How NAD+ depletion flips mitochondria from energy engines into aging accelerators: a 2025 npj review pinpoints why cellular power plants quit pulling their weight.
Seven longevity genes evolved over a billion years sit idle without NAD+. Imai and Guarente's classic npj review on why sirtuins need fuel to extend lifespan.
You've been taking NMN for six months. Did it actually do anything? A massive Nature Aging review finally has an answer: promising, but not magic.