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5-15 minutes
Watch stories from NOVA's new magazine-style series

Health Science

1918 Flu

1918 Flu (Nov. 2006)

A virus that killed up to 50 million people is brought back to life to decipher its deadliness. Watch now (13 mins.)


Aging (Jan. 2007)

Will research into "longevity genes" help us live longer and healthier lives? Watch now (13 mins.)

Anthrax Investigation

Anthrax Investigation (June 2009)

In this bonus video, see how scientists could tell whether the anthrax in the 2001 attacks was specially engineered to disperse through the air. Watch now (14 mins.)

Brain Trauma

Brain Trauma (July 2008)

Even so-called "mild" head injuries turn out to be anything but. Watch now (11 mins.)


Epigenetics (Jul. 2007)

Our lifestyles and environment can change the way our genes are expressed, leading even identical twins to become distinct as they age. Watch now (13 mins.)

Killer Microbe

Killer Microbe (July 2008)

A relatively benign bug becomes a highly lethal pathogen, known to U.S. soldiers as Iraqibacter. Watch now (8 mins.)

Mirror Neurons

Mirror Neurons (Jan. 2005)

A recently discovered system in the brain may help explain why we humans can get so worked up watching other people. Watch now (14 mins.)


Obesity (Oct. 2006)

Examine the biology behind the compulsion to eat. Watch now (12 mins.)

Pandemic Flu

Pandemic Flu (Jan. 2006)

Will the virus that causes bird flu develop the ability to move from person to person? Watch now (6 mins.)

Personal DNA Testing

Personal DNA Testing (July 2008)

Genetic testing to assess risk factors for a handful of serious illnesses is now commercially available. But is it a good idea? Watch now (12 mins.)

Profile: Tyler Curiel

Profile: Tyler Curiel (Jan. 2006)

In the midst of Hurricane Katrina a cancer researcher risks everything to save a medical treasure. Watch now (10 mins.)

Profile: Judah Folkman

Profile: Judah Folkman (July 2008)

Once scorned for his ideas about how cancer grows, the late Judah Folkman is now hailed as a visionary. Watch now (11 mins.)


RNAi (Jul. 2005)

A wayward petunia leads to the discovery of modest little molecules with enormous medical promise. Watch now (15 mins.)


Sleep (Jul. 2007)

Why do we need sleep? Part of the answer may be to strengthen memories. Watch now (13 mins.)

Stem Cells

Stem Cells (Apr. 2005)

A new technique for creating stem cells may ease ethical concerns. Watch now (8 mins.)

Stem Cells Breakthrough

Stem Cells Breakthrough (July 2008)

Three separate teams overcome a biomedical hurdle—creating stem cells without the use of human embryos. Watch now (13 mins.)

Stem Cells Update

Stem Cells Update (Jan. 2006)

A new technique for creating stem cells may ease ethical concerns. Watch now (8 mins.)


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