People ask why there is no research on why acupressure on the hands works

‌1. Since indigestion heals on its own 99% of the time, there is no need to conduct research specifically to treat it
2. It usually heals within a few hours, or a few days at most, so it is impossible to gather enough patients
3. Even if it were medically proven, it wouldn't lead to a profitable business model
Therefore, there is no need to spend money on research.