Degenerative diseases are conditions that cause the gradual deterioration of cells, tissues, or organs in the body. These diseases often worsen over time, leading to a decline in physical and mental abilities. Common examples include Alzheimer's disease, which affects memory and cognitive function, and Parkinson's disease, which impacts movement and coordination. Many degenerative diseases are linked to aging, but they can also be influenced by genetics, lifestyle, and environmental factors. While there is currently no cure for most degenerative diseases, treatments and therapies can help manage symptoms and improve quality of life for those affected.