mendelian-randomization
2 stories tagged "mendelian-randomization"
Brain & Aging
The Amino Acid Sold for Focus Tracked Fewer Years for Men, Not Women
In more than 270,000 people, men with higher blood tyrosine died sooner, by nearly a year on the genetic estimate. Women showed no clear lifespan signal. The amino acid is sold in capsules for focus.
Brain & AgingA 272,000-Person Study Linked Higher Tyrosine to Shorter Lifespans in Men. The Supplement Aisle Sells It for Focus.
A UK Biobank analysis of 272,475 people using Mendelian randomization links higher blood tyrosine to about 0.91 fewer years of life in men, with no signal in women. The amino acid is sold widely as a focus and stress supplement. The study measured blood levels, not pills.