Jalen Matthews sits on her yoga mat in her home in Louisville, Ky., Monday, Dec. 4, 2023. She was diagnosed with sickle cell at birth and had her first pain crisis at age 9. Three years later, the disease led to a spinal cord stroke that left her with some paralysis in her left arm and leg. “I had to learn how to walk again, feed myself, clothe myself, basically learn how to do everything all over again,” said Matthews, who is now 26. (AP Photo/Timothy D. Easley)