Hank discusses the various types of connective tissue and explains what the body can and cannot easily break down.

The brain is not yet understood by scientists completely. In 2013, the Brain Initiative was put forth and allocated $1 billion in research towards neuroscience to understand the brain more.

Researchers are trying to understand how the brain functions during sleep. All animals sleep and have a circadian clock. This clock tells the body when to sleep and when to wake.

This clip explains how the body stores and removes fat. It dispels the notion that we gain weight because we eat more; rather, we eat more before we're gaining weight. It also explains how carbohydrates can contribute to weight gain.

Ray pulls out a map to plan a quick diversion to see the McDonald's in San Bernadino.