Fisetin is an flavonol found in high concentration in strawberries. Recent research has found fisetin improves quality of life and increases lifespan by as much as 10%. It does this in part by destroying damaged cells know as senescent cells. When we are young the senescent cells are promptly removed but as we grow older our immune systems slow down and they begin to build up. Eventually senescent cells accumulate in the tissues contributing to the chronic inflammation, harming nearby healthy cells and making them also senescent, preventing tissue repair, and facilitating the development of various age-related diseases. Fisetin helps prevent this cycle. It also shows promise as an anti-cancer molecule. It destroys cancer cells and prevents them from replicating, particularly breast cancer cells.