Answer:
la tecnología existe desde aproximadamente 2,8 millones de años y surgió en la prehistoria en el período paleotico o al comienzo de la muy arcaica edad de piedra
It might be different by the Spanish-speaking country's standards. Maybe you might be confused by what the doctor is saying because you don't speak Spanish well. Maybe the procedure/checkup you're having is different from what you are used in the country you lived at before you visited this country.