#structural decline

• Hearing impairment — A popular term for deafness or a temporary or partial loss of hearing; a pathological or accidental state where an individual's auditory capacity is structurally diminished due to loud noise, an inner ear condition, or aging.
• Atrophy — To undergo a reduction in volume, weight, and functional capacity of an organ, tissue, or the entire body, due to malnutrition, prolonged lack of activity, or aging; (figuratively) to diminish, weaken, or lose original vigor, intensity, or structural value (such as the wasting of talent or feelings).
• Atrophying — The act of atrophying and its result; the biological or pathological process through which an organ or tissue gradually reduces its volume, weight, and functional capacities. Figuratively, it represents the progressive loss of vigor, intensity, or efficiency of a spiritual faculty, talent, or feeling due to disuse.
• Atrophied — Having undergone the process of atrophy; an organ, tissue, or muscle reduced in volume, weight, and functional capacity due to lack of activity, malnutrition, or neurological disease. Figuratively, it describes a spiritual faculty, talent, or feeling that has lost its original vigor, intensity, or structural efficiency due to lack of practice.
• Atrophy — A pathological or physiological diminution of the volume, weight, and functional capacity of an organ, tissue, or component cells, caused by nutritional disorders, prolonged immobilization, denervation, or aging. Figuratively, it represents the weakening, regression, or loss of vigor and efficiency of a spiritual faculty, feeling, or intellectual capacity.