What Happens When You Stop Eating?

The video explains the process of starvation, which occurs when the body lacks calories and nutrients. It describes three metabolic phases: glucose burning, fat burning, and protein breakdown. Initially, the body uses glucose for energy, then shifts to fat burning, entering ketosis. The brain adapts by using ketone bodies when glucose is scarce. In the final phase, the body breaks down proteins, leading to muscle depletion and potential death from cardiac arrest.

What is the primary energy source for the body during the initial phase of starvation?

• Fatty acids

• Ketone bodies

• Proteins

• Glucose

During ketosis, what does the body primarily use for energy?

• Proteins

• Fatty acids

• Vitamins

• Glucose

How does the brain adapt to a lack of glucose during starvation?

• It increases its glucose requirement

• It reduces its glucose requirement and uses ketone bodies

• It uses fatty acids directly

• It stops functioning

What marks the beginning of the third phase of starvation?

• The body begins to break down proteins

• The body stops using ketone bodies

• The body starts using glucose again

• The body increases fat storage

What is the ultimate cause of death during prolonged starvation?

• Overconsumption of ketone bodies

• Inability to produce glucose

• Excessive tissue degradation leading to cardiac arrest

• Lack of water