In general? The environment. All those species of plants that might have cured diseases . . .

Personally? My grandparents/relatives. My mother's parents died before I was born (my grandmother when my mom was 22, my grandfather just a week before I came along--I was born in New Jersey because my parents were there for his funeral and I arrived early). My father's father had Parkinson's disease and died when I was 10--he'd been sick for a long time and by the time I was old enough not to be afraid of it, he was so far gone he couldn't talk or get around well. My father's mother never got along with my mother and she now is in the last stages of Alzheimer's. We haven't lived close to either set of in-laws since I was 5. My mother has all kinds of neat aunts and uncles and cousins that I barely know. I remember my brother once cried because he was so angry that he hadn't been able to grow up with these people since we lived halfway across the country.