I admit my eyes did glaze over when I was reading on the chemistry of saturated vs unsaturated fats and single bond vs double or triple bonds of carbon atoms. The diagrams were not something I could ever commit to memory. But I can grasp the gist of it. Even us lay people sometimes have occasion to come across the more detailed explanations.
I have a head full of images of every type of biological molecule and chemical reaction that exists.
On Youtube, there are videos (computer animations) that people have made of biochemical processes. I am a terrible artist, so it is exciting for me to watch some of these movies and see the images and reactions that have existed for so long in my mind brought to life. Yes, I am a total nerd.