Meghan Daum

The reason it was so bruising when someone said I was from a rich family is that, like many of us, I'm deeply invested - probably overly so - in the myth of my own self-creation. I like to believe that I got where I am, such as it is, by working hard and charting my own course.

In a Harvard University study, the diets of nearly 1,000 women were analysed before their morning melatonin levels were measured. Meat consumption was the only food significantly associated with lower melatonin production, for reasons that are as yet unknown.