What is Human Factors?

Hey y’all,

I’m a senior in high school trying to decide where I want to go and also trying to learn more about different fields.

So I chose to major in Industrial Design in most of the colleges I applied to, and Mechanical Engineering for some of the more affordable colleges that are near me that don’t have an ID major. The more I look at ID, I’ve learned that there are so many related fields like UX Research which kinda seems similar to Human Factors. So what is Human Factors? And I’ve never really heard of a Human Factors major so how did y’all become Human Factors (People? Engineers? Not real sure what you guys go by)?

Thanks!