Kat Fu, M.S., M.S.
@thekatfu
I help men 40+ reverse decline & extend their prime. Building the only longevity roadmap based on YOUR biology—not trends 9-day Masterclass + early access👇
Over 40 & want to perform 20 years younger? These are the tools no one’s showing you: ➤ Cut brain fog – boost cognition ➤ Drop the dad bod – burn belly fat ➤ Boost drive – raise T, libido, fertility ➤ Slow shedding – stop balding ➤ Move better – like you're 25 Start here🧵
➤ *Stop drinking water before bed” only works if timing was the cause. Most people try fluid restriction. But if the core issue is disrupted vasopressin signaling, all that does is dehydrate you. Same goes for sleep supplements—they sedate, but don’t reset the system that…
📊 In a review of 16 studies, nighttime melatonin levels in adults over 65 showed massive variation: Peak levels ranged from 11.2 to 91.3 pg/mL (For comparison: healthy young adults typically peak at 60–80 pg/mL)
Most people think vitamin D toxicity only happens at extreme doses. I used to think that too—until I saw the biological aging data. Even "high-normal" levels are linked faster aging. Here's why I now aim for 60-80 nmol/L instead 👇
Many people chase high vitamin D—thinking 100+ is optimal But the evidence says otherwise <70nmol/L, cognitive risk rises Above that? Likely faster biological aging After reviewing the latest evidence, here are 4 findings that explain why I aim for 60–80nmol/L—not 100🧵
Supplements don’t fix root causes. Take L-theanine, GABA, or passionflower—they calm you down temporarily. But why do you need a chemical to feel calm? Your body already has those pathways. If they aren’t working, you don’t need a band-aid. You need to ask: what broke the…
Nocturnal urination—aka *nocturia*—isn’t always about fluid overload. It’s often a mismatch between your circadian clock and vasopressin, a hormone that concentrates urine while you sleep. When vasopressin secretion is blunted or poorly timed, the bladder fills faster—even if…