I'm studying part-time at Massey towards a Certificate in Health Science. I'm now a quarter of the way there - just got my results for this year's classes. I got a B+ in Psychology and an A in Nutrition, which I'm happy with (especially since the psych assignments were marked really hard).
I'm studying two papers over the summer too - Applied Science for Health Professionals and Human Bioscience: Normal Body Function. Lots of anatomy and physiology. It's interesting.
Human bodies are amazingly complicated things. I'd hate to have to run one.