Notes, essays, and experiments on health, longevity, nutrition, fitness, and metabolic wellness.https://health.duklee.net/en-ushttps://health.duklee.net/blog/2026-09-26-coffee-sleep-truth-science-vs-marketing/https://health.duklee.net/blog/2026-09-26-coffee-sleep-truth-science-vs-marketing/Quit coffee cold turkey for better sleep only to be bombarded by news claiming coffee is a life-extending superfood? A deep scientific investigation into nutritional epidemiology biases, Mendelian randomization, the decaf revelation, cafestol diterpenes, and the brutal neuroscience of adenosine and slow-wave sleep destruction.Sat, 26 Sep 2026 00:00:00 GMT