I still only mostly understand it, but I did enjoy learning about DNA translation and transcription and how a one or two letter deletion in your DNA could massively affect the proteins. I find the genetic link to diseases really interesting, how two parents can be perfectly fine but their child have a super rare genetic condition.

It was also really interesting learning more about cell communication and how things like serotonin work, since I used to work in family medicine and we had a bunch of patients who were taking anti-depressants. At some point I’ll look more into how Adderall helps with my ADHD, but my brain needs a bit of a break before I hurt it with more cell biology.