In an update to his two-party map, political scientist David Sparks shows the evolution of the two-party system across the country, since 1920. Red and blue. Keeps on moving.
Map shows two-party presidential shifts since 1920
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Sleep Schedule, From the Inconsistent Teenage Years to Retirement
From the teenage years to college to adulthood through retirement, sleep is all over the place at first but then converges towards consistency.
Relationships: The First Time…
When Americans had sex, moved in with someone, and so on. Often not average. Far from normal.
Giving Up Time as a Parent
There is a fixed number of minutes during the day. Where do parents usually draw the time from?