Advances in Neurotechnology

In this video segment from Greater Boston, learn how a man with severe motor disabilities can operate a computer and move a prosthetic hand by simply thinking the commands, thanks to the combined efforts of bioengineers and neuroscientists.

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The Advantage of Sex

Why did sex evolve? The likely answers, in this essay for the Evolution Web site by science journalist Matt Ridley, may surprise you.

Air Quality Index

In this interactive activity adapted from "Air Quality Index: A Guide to Air Quality and Your Health" by the U.S. EPA, learn about common pollutants in the air we breathe, their health effects, and how their levels are reported.

Atmospheric Pressure

Did you know that air has weight? This illustrated essay from the NOVA Web site explores conditions that affect air density and atmospheric pressure.

Atrazine Affects the Water Supply

In this video segment featuring live-action animation, adapted from Big River: A King Corn Companion, see how the agricultural pesticide atrazine impacts both crops and human health.

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Blood Flow and Thermoregulation

In this interactive activity adapted from the University of Alberta, learn about the ways your body can regulate its temperature.

Blood Vessels Help Tumors Grow

In this video segment, adapted from NOVA, Dr. Judah Folkman uses the scientific method to discover how cancer cells induce the formation of new blood vessels, which in turn nourish those cancer cells.

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Bubonic Plague

In this video segment adapted from A Science Odyssey, learn about bubonic plague and how city officials in San Francisco tried to contain its spread in the early 1900s.

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Can Organic Farms and Mosquito Control Coexist?

Learn about one town's conflict over the issue of spraying pesticides to combat disease-carrying insects, in this video segment from Greater Boston.

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Can We Slow Aging?

In this video segment adapted from NOVA scienceNOW, scientists discuss a family of genes called FOXO that can significantly extend life span in worms—and in humans.

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Careers in Environmental Health

This interactive activity produced for Teachers’ Domain examines some of the career opportunities available in the environmental public health field and describes how the work of professionals in this field directly impacts human health.

Chemical Risks to a Fetus

Learn about the risks environmental contaminants pose for a developing fetus, in this video adapted from Contaminated Without Consent.

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Chicken Waste and Water Pollution

In this video segment adapted from FRONTLINE: “Poisoned Waters,” learn how unregulated waste from large-scale chicken farms contributes to water pollution.

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Chromosome Viewer

This interactive feature provides a microscopic view of the 24 Human chromosomes. Each chromosome is labeled with the names of some of the genetic conditions and traits associated with particular regions on that chromosome.

Clean Water Systems in Mexico

The push to modernize Mexico's water and sanitation systems not only saved human lives, it also spurred economic growth, as illustrated in this video segment adapted from Rx for Survival.

Climate Change and Human Health

Learn how global climate change affects human health in this interactive activity adapted from "A Human Health Perspective: On Climate Change" by the National Institute of Environmental Health Sciences.

Contaminants in the Arctic Human Population

In this video segment adapted from LOKE Films and the Arctic Monitoring and Assessment Programme, learn how human populations in the Arctic are affected by industrial contaminants in the food chain.

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Contaminating the Rockies

Learn how abandoned mines have been contaminating water supplies in the Rocky Mountains for decades in this video segment adapted from NOVA: "Poison in the Rockies."

Converting to Biodiesel

Meet a college student whose class project to turn cooking grease into diesel fuel resulted in converting bus fleets to biodiesel, in this video from Earth Island Institute's New Leaders Initiative.

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Dengue Virus Invades a Cell

In this visualization adapted from the University of Massachusetts Medical School, discover the role that dengue viral proteins play in a human cell as the virus prepares to replicate.

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