There’s no such thing as a miracle cure for weight loss, but the latest obesity drugs seem to come pretty close. People who take Ozempic or other weekly shots belonging to a class known as GLP-1 agonists, after the gut hormone they mimic, can lose a fifth or more of their body weight in a year. Incessant “food noise” fueling the urge to eat suddenly goes silent.
When scientists first created the class of drugs that includes Ozempic, they told a tidy story about how the medications would work: The gut releases a hormone called GLP-1 that signals you’re full, so a drug that mimics GLP-1 could do the exact same thing, helping people eat less and lose weight.
A century ago, physics breakthroughs came in rapid sequence. There was quantum mechanics and Einstein’s theories of space and time, lots of new particles, two new nuclear forces, and eventually the standard model of particle physics. This progress and its technological applications commanded respect, if not outright fear.