How does the current interest rate environment in the U.S.

How does the current interest rate environment in the U.S. affect the interest rate risk that bondholders are subjected to in the U.S.? What would be your recommendation to people close to retirement that are typically advised to hold a significant portion of their retirement portfolio in U.S. bonds? (Hint: check the current and historical levels of the Federal Funds Rate, which is the baseline interest rate in the U.S.)