A gerontologist is a specialist who studies aging, health, and the needs of older adults. Synonyms for the word gerontologist include aging researcher, geriatrician, senior health specialist, elder care expert, and geriatrics practitioner. These professionals work to understand the unique challenges that aging adults face and provide treatment and support to help improve their quality of life. Gerontologists also work with dementia patients, identifying the disease, and enhancing their cognitive function. They may also specialize in end-of-life care, geriatric psychiatry, and rehabilitation medicine. Whatever their specialty, gerontologists work tirelessly to ensure the health, wellness, and dignity of aging adults.