The phrase "eternal youth" refers to the idea or belief that one can maintain a state of being young and full of energy indefinitely, without aging. It is often associated with beauty, vitality, and a zest for life. The concept of eternal youth has been explored throughout history through myths, legends, and stories about immortality or long-lived beings such as gods, goddesses, and superheroes. In modern times, the pursuit of eternal youth is often linked to anti-aging products, cosmetic procedures, and healthy lifestyle choices. However, while some people may strive for a longer, more active life, true "eternal youth" remains elusive as everyone ultimately ages and dies.