Hunger

Definition

Hunger is the physiological need for food triggered by complex interactions between the digestive system, brain, and hormones. It signals the body to replenish energy and nutrients essential for proper functioning.

5 Must Know Facts For Your Next Test

1. Hunger impacts cognitive functions such as concentration, memory, and decision-making.
2. Malnutrition due to chronic hunger can exacerbate neurological disorders like epilepsy and Alzheimer's disease.
3. The hypothalamus plays a critical role in regulating hunger by responding to signals from hormones like ghrelin and leptin.
4. Proper nutrition can help mitigate symptoms of depression and anxiety linked to neurological health.
5. Nutrient deficiencies resulting from prolonged hunger can lead to nerve damage and impaired neural function.

Review Questions

• How does hunger impact cognitive functions?
• Which part of the brain is primarily responsible for regulating hunger?
• What are some neurological disorders that can be exacerbated by malnutrition?

Related terms

Malnutrition:

A condition that occurs when the body does not get enough nutrients, impacting overall health and neurological function.

Hypothalamus:

A region of the brain that regulates various bodily functions, including hunger and thirst.

Ghrelin:

A hormone produced in the stomach that stimulates appetite by signaling the brain.