What term refers to conditions that hinder the body's ability to properly process substances?

The term that refers to conditions hindering the body's ability to properly process substances is metabolic errors. Metabolic errors are typically genetic disorders that affect the body's metabolism, which is the process of converting food into energy and maintaining other bodily functions. When metabolic pathways are disrupted due to enzyme deficiencies or other factors, the body cannot effectively process certain substances, which can lead to a buildup of toxins or a deficiency in essential compounds.

In contrast, hydrocephaly is a condition characterized by an accumulation of cerebrospinal fluid in the brain, leading to increased pressure. Spina bifida is a neural tube defect that affects the development of the spinal cord and surrounding structures. Encephalitis is an inflammation of the brain often caused by infections. While these conditions can have serious implications for bodily function and health, they do not specifically pertain to the overall mechanisms of substance processing in the way that metabolic errors do.