The U.S. childhood vaccine schedule is not a list doctors randomly decided on. It evolved over decades in response to deadly outbreaks, hard lessons and rigorous research. Rolling it back, says infectious disease specialist Dr. Jake Scott, risks relearning those lessons the hard way.

The Conversation

RFK Jr. guts the US childhood vaccine schedule despite its decades-long safety record

In an unprecedented move, health officials cut the number of vaccines routinely recommended for children from 17 to 11.

What makes your clean, minty mouth taste so gross when it meets OJ? A psychologist who has spent more than 40 years researching the science of how people experience taste and flavor explains what happens:

The Conversation

Why does orange juice taste bad after you brush your teeth?

Sour acidic tastes turn bitter after you brush your teeth with toothpaste.