Simple Light Colored Sign Health Related Abbreviation Sti

Design a new image featuring a person holding a simple, light-colored sign with a health-related abbreviation (e.g., "STI") in bold, playful letters. The person should be wearing vibrant, comfortable athletic wear (like shorts and a tank top) in a bright color such as teal or orange. The background should be a soft, neutral color, like light gray. The person's hands should be relaxed and confident while holding the sign at waist level, ensuring the focus remains on the sign's message.