There is a saying that goes: Medical school is like drinking from a fire hydrant.
I feel the same in Biochemistry as well. Our professors are firing knowledge to us with full force torrent. Only those who can swim will survive, those who can't swim will drown.
Imagine going through 60-70 slides for a 50-minute lecture on advanced Biochemistry or Immunology or Brain Development. That is like an average of about 45 seconds per slide. That's a crazy amount of knowledge you acquire per lecture.
Don't get me wrong, I do enjoy my classes in various fields of the Sciences. Just that, I wish I will get better at drinking from a fire hydrant, swallowing information more effectively and efficiently.