All animals, including humans, need to sleep. Scientists have several theories that help explain why we sleep. In this episode of But Why, a child sleep psychologist describes the evolutionary theory of sleep and explains how sleep benefits the brain and body. Listen to learn more about the science of sleep and its importance for healthy growth and development.
Current Event August 28, 2019
Many decades ago, children from poor families participated in an early childhood educational program known as the Perry Preschool Project aimed at improving the children’s academic achievement. While the program did not have the effect that the researchers anticipated, it did have a positive impact on their lives and on future generations. Listen to learn about the long-term effects of the Perry Preschool Project and how this study may shift the way we prepare students for success.
Current Event June 7, 2019
Researchers from the United Kingdom now have scientific evidence that using e-cigarettes is significantly more effective for quitting smoking than other methods. However, U.S. public health officials worry that promoting e-cigarettes could increase nicotine addiction. Listen to this story to hear about the research study findings and debate: Is reducing smoking worth increasing nicotine addiction?
Current Event April 10, 2019
Scientists are curious about how humans evolved to help each other, which is different from the typical behavior of other animals. To investigate social behaviors such as helping and sharing, researchers have performed experiments to see how willing other primates are to share food and supplies. Listen to learn about their research on how other primates approach sharing and how that differs from human behavior.
Current Event October 21, 2016
Affordable housing is become increasingly scarce in many cities around the country. Many low-income tenants often find themselves unable to pay their rent and at risk of eviction. Most tenants who fail to pay rent and are taken to court have no lawyer, while most landlords do. Some people believe this could be improved by providing free legal help to tenants. Listen to hear stories of people facing eviction and the struggle for affordable housing. Then debate whether the government should have a role in increasing affordable housing.
Scientists are trying to settle the age-old question of nature versus nurture. To test it out, scientists experiment on ducks to help determine whether animals are born with no knowledge of the world and only learn things from experience, or whether they emerge with some knowledge already intact. Listen to hear how the experiment is done and what it can tell us about nature versus nurture.