'Personalized DJ' music playlist algorithm matches songs to listeners' changing moods

Imagine having a disc jockey inside your computer who matches the music played to your current frame of mind. According to new research, machine learning can approximate that experience creating ultra-personal music playlists that adapt to each user's changing moods.

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Children told lies by parents subsequently lie more as adults, face adjustment difficulty

'If you don't behave, I'll call the police,' is a lie that parents might use to get their young children to behave. Parents' lies elicit compliance in the short term, but a new psychology study suggests that they are associated with detrimental effects when the child becomes an adult.

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No evidence that power posing works

Striking a power pose before an important meeting or interview is not going to boost your confidence or make you feel more powerful, says a researcher. A psychology professor reviewed nearly 40 studies on the topic and found not a single one supports the claims that power posing works.

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Better sleep habits lead to better college grades

Two professors have found a strong relationship between students' grades and how much sleep they're getting. What time students go to bed and the consistency of their sleep habits also make a big difference. And no, getting a good night's sleep just before a big test is not good enough — it takes several nights in a row of good sleep to make a difference.

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