One more, which is super interesting.
Katie Hinde -
She discovered that breast milk changes its formula based on whether the baby is a boy or girl. Then she found something even more shocking: the baby's spit tells the mother's body what medicine to make.
2008 Katie Hinde stood in a California primate research lab staring at data that didn't make sense.
She was analyzing milk samples from rhesus macaque mothers—hundreds of samples, thousands of measurements.
And the pattern was impossible to ignore:
Mothers with sons produced milk with higher fat and protein concentrations.
Mothers with daughters produced larger volumes with different nutrient ratios.
The milk wasn't the same. It was customized.
Her male colleagues dismissed it immediately. "Measurement error." "Random variation." "Probably nothing."
But Katie Hinde trusted the numbers. And the numbers were screaming something revolutionary:
Milk wasn't just food. It was a message.
For decades, science had treated breast milk like gasoline—a delivery system for calories and ...