Researchers tracked the personal daily online activity profiles of nearly 15,000 college students as they logged into campus servers. After sorting the students into “night owls,” “daytime finches” and “morning larks” — based on their activities on days they were not in class — researchers compared their class times to their academic outcomes.
Source: berkeley.edu
Dreams differ not only across a single lifetime or a single night, they also differ dramatically across historical epochs. The dreams of the ancient Greeks and Romans, and indeed the dreams of most peoples of the ancient world, were viewed as direct portals into the spirit world and the realm of the ancestors and gods. Ancient peoples (and traditional peoples even today) often experienced dreams as the place to conduct a transaction with a spirit being who could significantly help or hinder you in your daily affairs.
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In humans, the profound biological differences that exist between the sexes mean that a single male is physically capable of having far more children than is a single female. Women carry unborn children for nine months and often nurse them for several years prior to having additional children. Men, meanwhile, are able to procreate while investing far less time in the bearing and early rearing of each child.
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We called them fairy rocks. They were just colorful specks of gravel—the kind you might buy for a fish tank—mixed into my preschool’s playground sand pit. But my classmates and I endowed them with magical properties, hunted them like treasure, and carefully sorted them into piles of sapphire, emerald, and ruby.
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