Why is Billy Gibbons so thin?

Billy Gibbons, the guitarist of ZZ Top, is known for his slim physique, which can be attributed to a combination of genetics, lifestyle choices, and his active career in music. Gibbons has mentioned in interviews that he maintains a healthy diet and lifestyle, which contributes to his lean appearance. Additionally, the demands of touring and performing can also lead to a more active and physically engaged lifestyle, further influencing his body type.