Even doctors reject once-trusted treatments because science keeps evolving and is about continuing to test a hypothesis and challenge the conclusions reached.
For example, it was once thought proper medical treatment to “bleed” sick people. They would draw blood from the sick. That was “trusted science” that turned out to be dangerous nonsense.
“They would draw blood from the sick.”
Uh, the Medicos mostly continue to draw blood, just much less than before. They still claim that the drawing of the blood is indicated for proper treatment.
Not all that long ago, many doctors thought stomach ulcers were from eating spicy foods. It turns out it’s a specific bacteria that causes the problem in most cases.
https://www.muhealth.org/our-stories/what-causes-stomach-ulcers-dont-assume-spicy-foods-are-blame