Milan_Jovic / Getty Images KEY TAKEAWAYS As Americans' average lifespans continue to increase, the average amount of savings will likely not last an entire retirement. Additionally, as inflation continues to persist, retirement accounts need to have more savings to afford the increased price of goods and services. Retirement accounts can shift to a "purpose-oriented portfolio strategy" and increase savings so that they earn 4% to 5% more than inflation. Americans are facing longer retirement as w ...