Some age-related decline is locked in. Strength, balance and fall risk are not – and the evidence shows what works.

Just like every other age group, there's a wide range of inputs to the average figure, which is misleading in and of itself.

Waiting until 70 means giving up years of benefits, but there are some very good reasons to make the sacrifice.

Working later in life is more common than many assume—but how many Americans stay employed, and how has that changed over time?

Trina Paul is a Breaking News and Personal Finance Writer at Investopedia, covering topics like retirement, consumer debt, and retail investing. She focuses on making complex financial topics ...