In this program, we introduce the “joule”, the unit for energy. We then look at how much energy is stored in different foods by comparing apples and oranges (normally a no-no) and we discuss how much energy we need to do certain things including nothing much at all. We then explore the concept of energy balance and reveal the two simple rules for weight loss. That’s right, there are only two!

Originally released by Liacos Educational Media, 2018. Streaming video file encoded with permission for digital streaming by Infobase on March 22, 2018.

Part A: Introduction (1:15); --Part B: Joules (4:59); -- Part C: Energy Expenditure (3:55); -- Part D: Energy Intake (9:47); -- Part E: Energy Balance and Getting it Right (13:50); -- Credits: Shedding Light on Energy: Episode 2—Measuring Energy (0:44);.