In high school I had B's and C's, not too many A's, but I must have done well on that medical school test, and I must have had some charisma in the interview, so I ended up in medicine. Being a general practitioner was all I aspired to.
In medical school, it's quite possible to get taught that you can diagnose everybody and treat everything. But then you get out in the real world and find that for most patients walking through your door, you have no idea what's causing their symptoms.
Dad always explained the car engine when he repaired it, and he had many technical books, so I was making electromagnets by age eight as well as reading my mother's medical and nursing books. I suspect I was born with a boundless curiosity, and this was encouraged through my childhood.
I was hoping I was going to get an ulcer. I was hoping to boost my research career by developing a bleeding ulcer.
Everything that's supposedly caused by stress, I tell people there's a Nobel Prize there if you find out the real cause.
My mother was a nurse, and in her era, most diseases weren't understood; people put mustard plasters on knees and rubbed camphor on your chest if you had a cough and did funny things to you if you had tuberculosis - all these things that really made very little difference once proper treatments were brought in.
My favourite book as a child was an old 'Newne's Children's Encyclopaedia' which my grandfather had bought just before World War II and donated to our family after seeing how interested we were in it. Each volume had special chapters called 'Things Boys can Do.' My brothers and I would pick out interesting projects.