A significant part of science is plucking the true bits from common sense. A fair chunk of what we call medicine is folk remedies that stood up to rigorous testing.
There are also a lot of folk remedies that have been disproven as medicine. They too were ‘common sense.’
"You know what they call alternative medicine that works? Medicine." - Tim Minchin
(Even simple things like "an apple a day" - apples are fine, but foods like berries, kiwis and avocados tend to have both lower sugar and much higher nutritional content.)
Gene therapies, targeted cancer treatments, blood pressure medication, antibiotics, surgery, joint replacements, sterile practices, vaccines, hormone replacement therapies.