Helth Cover

I’m near the end of year 11, and am deciding what a-levels to take.
I recently thought I wanted to be a doctor, then I read things which made me uncertain what type of doctor, or maybe nursing.

I know for sure though that I want to work helping people with their health.
I am predicted A’s in my GCSEs, and I find Chemistry hard, but if it’s necessary I will take it.

Also, should I take Biology or Human Biology?