The field in medicine that is concerned about the health of older adults is known as what?

The field concerned with the health of older adults is geriatrics. This medical specialty focuses on the unique health needs and challenges that arise as individuals age. Geriatrics encompasses a range of issues, including the prevention and treatment of diseases prevalent among older adults, management of multiple chronic conditions, and the promotion of functional independence and quality of life in aging patients.

Professionals in geriatrics are trained to recognize the complexities of aging, including the physical, psychological, and social factors that can affect health outcomes in older populations. This specialization is crucial as older adults often have different health care needs compared to younger populations, requiring tailored approaches for their medical care and support.

The other fields mentioned, such as pediatrics, oncology, and cardiology, focus on specific age groups or conditions and do not specialize in the comprehensive care of older adults. Thus, geriatrics is the appropriate answer.