A research program called the Interventions Testing Program has been testing anti-aging pills and treatments for 20 years, and most of them haven't actually been proven to help people or animals live longer.

When scientists test the same anti-aging treatments in three different labs at the same time using the same methods, it helps confirm whether the results are real and not just random mistakes.

Scientists are finding that taking anti-aging medicines or treatments your whole life might not be needed and could even be bad for you, especially if you start when you're young. Instead, it might be better to wait until you're older and use these treatments for shorter periods.