Definition
An evolutionary theory explaining why we age: genes that boost survival and reproduction early in life can have harmful effects later. Natural selection favors genes that help you reproduce, even if they kill you afterward. Youth is borrowed time.
Example
"Testosterone is a classic example of antagonistic pleiotropy—great for building muscle in your 20s, potentially problematic for your prostate in your 60s."
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You know how you plant trees of wisdom in youth, then in old age find your fruits sour? That's life for you, always giving you sugar first before stirring in the spice. "Back then in the day, they called it 'living', now you kids have names like antagonistic pleiotropy for the same thing. Oh, my arthritis remembers!"
Woohoo, evolution! Prioritizes you populating the planet, then basically flips you the bird after 40. Who cares if you fall apart like a bad IKEA chair, right? "Yeah, evolution's like, 'Antagonistic pleiotropy is a great idea!' while we suffer through life's terrible sequel."
Imagine genes give you flawless skin at 16 and eye bags by 40—sound familiar? Welcome to the world where beauty is fleeting, but hacks are forever. "Spotted a wrinkle? Blame antagonistic pleiotropy, then meet my six-step nighttime routine to fight back!"
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