how are you guys taking so many APs?

i saw someones junior year schedule today, and they are taking a whopping 7 APs. like how is this even possible? in my school freshmens are not allowed to take APs, and in your sophomore year you only have like 3 APs to choose from. in your junior and senior year you got a few more choices, but still no where near to 7 APs in a year. like how do you even study for all that stuff?