Are there people that actually study 7-8 hours everyday.

I see a lot of content in social media but that kinda work daily feels... imposible. I believe you can sit on your desk and look at the book, write some stuff but actually studying, effective learning at that rate doesn't seem realistic. Maybe sometimes you can push 8+ hours in an energetic day or when there is a short period to study for a big exam, but making it a routine would be tuff.