For the Apple Women’s Health Study, which uses cycle tracking data from iPhones and Apple Watches, the Harvard T.H. Chan School of Public Health provides a visual explanation of how menstrual cycles vary. With some tweaks, it could also stand in as an explainer for distributions and averages.
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About 18 percent of couple households are single-income. I wanted to know what the earner in these homes usually do.
Most people have a job and receive wages in return, but that starts to change when you get into the higher income groups.
What Alcohol People Around the World Drink
Americans get most of their alcohol from beer, but it’s not like that everywhere.