Public Genomes - 02:00

A slew of businesses now offer to test your DNA and assess your risk of getting cancer, heart disease, and other illnesses. But can genetic testing provide accurate predictions of conditions with complex genetic underpinnings? On another front, researchers at Harvard have launched the Personal Genome Project, enlisting thousands of people to make their DNA sequences and other personal information public on the Internet.

The Science of Picky Eaters - 02:00

What makes a dish taste good to some people and terrible to others? Why do many people, particularly many kids, find broccoli and spinach unbearably bitter? Neil deGrasse Tyson, whose mother says he was always a good eater, sets out to investigate the science behind our sense of taste.