You are preparing a presentation on the wellness-based model for healthy aging. Which of the following concepts should the student include in the presentation? (Select All that Apply.)

A. Healthy aging cannot be achieved by only focusing on later life. It is a lifelong process. The wellness-based model supports the idea that healthy aging is a lifelong journey that includes proactive engagement in health-promoting behaviors across the lifespan-not just in old age. B. There are many strategies to promote healthy aging that are believed to be helpful but do not have empirical evidence to support them. While evidence-based interventions are ideal, many widely practiced wellness strategies (e.g., certain dietary supplements, mind-body techniques) may not have strong empirical backing but are still used based on cultural beliefs, individual preferences, or experiential success. C. According to this model, an individual with a chronic disease would not be considered healthy. The wellness-based model does not define health by the absence of disease. A person with a chronic illness can still achieve wellness by optimizing other domains such as psychological, spiritual, or functional well-being. D. Healthy aging is individually defined and can change over time. In this model, health and wellness are subjective and dynamic, varying from person to person and shifting with changes in circumstances, goals, or age. E. Healthy aging is defined by the absence of physical illness alone. The wellness-based model rejects a narrow biomedical view of health. Instead, it emphasizes a holistic view, including psychological, social, environmental, spiritual, and functional domains-not just physical illness.