What is the definition of Usually Medical Research?

"Usually medical research is all about finding cures for the most common illnesses - like the flu, the common cold, and probably your mom's migraines. But let's not forget the occasional 'rare' disease that makes you question your life choices, like that one study on how to make pineapple taste like a superhero's cape."

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Example sentence: "When the researchers finally cracked the code on why astronauts get bone density issues in space, they just had to declare it 'usually medical research' - because let's face it, in zero gravity, the only thing that's 'rare' is the Earth."