Ferritin is a crucial biomarker for assessing longevity as it measures the body’s iron stores. Elevated levels of ferritin have been linked to an increased risk of age-related diseases such as cardiovascular disease, diabetes, and certain cancers. By monitoring ferritin levels, individuals can take proactive measures to optimize their longevity. Maintaining optimal ferritin levels through diet, exercise, and supplementation can help prevent the detrimental effects of iron overload and promote healthy aging. This biomarker serves as an important tool in assessing and managing longevity, allowing individuals to make informed decisions about their health and well-being.