Dr. Omalu explains how a football player died after a series of repeated hits to the head.

Pathologist Dr. Bennet Omalu is adamant about bringing transparency to the topic of brain damage in football players who suffer multiple concussions. His audience, however, is more concerned about how Dr. Omalu's work will affect the business of football.

The NFL wants Dr. Omalu to retract the statements that he said about football killing Mike Webster.

Beakman talks about how important oxygen is and why we need it to live. Beakman acts like Joseph Priestly to explain that oxygen is needed for us to create energy. He uses an engine and a candle as demos to explain the need for oxygen to burn fuel.

A patient discovers he has a tumor in the true vocal cord