Medical experts have complained that the so-called “normal” 98.6” body temperature isn’t accurate and should be personalized for each patient.

Normal body temperature is lower than 98.6 degrees Fahrenheit, studies find. Doctors reveal the most accurate body temperature and what it means for a fever.

What is our actual body temperature? In a follow-up study, Parsonnet and researchers found average body temperatures, ranged from 97.2 degrees to 98.4 degrees.