Optispan is a company focused on promoting healthspan and longevity through proactive health measures. They emphasize the importance of understanding the biological processes underlying aging and age-related diseases, which they believe are modifiable. Optispan offers services such as biological age testing, personalized intervention plans, and preventive healthcare strategies. Their goal is to help people stay healthy for as long as possible by delaying or preventing age-related conditions. They advocate for a shift towards proactive longevity medicine, aiming to recover what they term as the "Lost Decade," a period marked by poor health and disability, and to achieve a "Longevity Dividend" by extending healthy lifespan beyond current limits.