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Video thumbnail: PBS NewsHour Do we overestimate how much sleep we need?

PBS NewsHour

Do we overestimate how much sleep we need?

These hunter-gatherer tribes sleep less than you, and sleep better

Do we overestimate how much sleep we need?

Video thumbnail: PBS NewsHour Getting prisoners life-ready to prevent a return to crime

PBS NewsHour

Getting prisoners life-ready to prevent a return to crime

Getting prisoners life-ready to prevent a return to crime

Getting prisoners life-ready to prevent a return to crime

Video thumbnail: PBS NewsHour How social entrepreneurs are changing the world

PBS NewsHour

How social entrepreneurs are changing the world

How social entrepreneurs are changing the world

How social entrepreneurs are changing the world

Video thumbnail: PBS NewsHour New suspects identified in Lockerbie bombing case

PBS NewsHour

New suspects identified in Lockerbie bombing case

New suspects identified in Lockerbie bombing case

New suspects identified in Lockerbie bombing case

Video thumbnail: PBS NewsHour What influenced the decision to keep troops in Afghanistan

PBS NewsHour

What influenced the decision to keep troops in Afghanistan

What influenced Obama’s decision to keep troops in Afghanistan

What influenced the decision to keep troops in Afghanistan

Video thumbnail: PBS NewsHour Wisdom from four decades of education reporting

PBS NewsHour

Wisdom from four decades of education reporting

Wisdom from four decades of education reporting

Wisdom from four decades of education reporting

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