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.

Accessibility features: Caption

Evolving Ideas: Why Does Evolution Matter Now?

In this video from Evolution, an exploration of multi-drug resistant tuberculosis in the Russian prison system highlights one reason it is important to understand evolution.

Accessibility features: Caption

HIV Immunity

Although repeatedly exposed to HIV, Steve Crohn's blood cells were never infected. Dr. David Ho investigates in this video segment from NOVA: "Surviving AIDS."

Accessibility features: Caption

How Cancer Cells Grow and Divide

This animation from NOVA: "Battle in the War on Cancer: Breast Cancer" describes how oncogenes cause cancer and how cancerous cells can spread throughout the body.

Accessibility features: Audio Description, Caption, Transcript

How to Conquer a Genetic Disease

In Blazing a Genetic Trail, by the Howard Hughes Medical Institute, follow this three-step approach to treating genetic diseases.

Immune Cells in Action

In this video segment from The Secret of Life Teaching Modules: "Nothing to Sneeze At: Viruses," watch as a virus attacks a cell, and learn how the immune system reacts to this onslaught.

Accessibility features: Audio Description, Caption

Making Cortisone From Plants

This video segment adapted from NOVA is a dramatized story of chemist Percy Julian’s work to synthesize cortisone. Find out how a biological process, not a chemical one, proved the key to producing cortisone in bulk.

Accessibility features: Caption

Microbe Clock

In this Evolution Web feature, learn how mutation and fast reproductive rates can allow deadly microbes to outpace medical breakthroughs.

Mouse Party

In this interactive activity from The University of Utah, examine the molecular mechanisms that affect the brains of mice on drugs. Learn how different drugs create different responses in the brain and alter the natural state of a mouse.

Nature's Pharmacy

In this interactive activity from NOVA, learn about chemicals in nature that are used in medicine.

Romiya Glover

In this video from Science City, meet Romiya Glover, a chemist who develops products for HIV/AIDS testing. She describes the multidisciplinary nature of her job, how she decided to go into science, and how her work benefits others.

Accessibility features: Caption

RNAi Therapy

In this video segment adapted from NOVA scienceNOW, learn about RNAi's potential to treat a wide range of genetic and infectious diseases.

Accessibility features: Caption