The world is getting older. Here's how that's going to change things.
About one in six people globally will live to be 65 or older in 2050, according to estimates, up from about one in 10 today.
For most of modern financial history, longevity was treated as a footnote - a demographic detail, not a driving force. That's no longer the case.
Due to longer life expectancy and declining birth rates, the world is getting older - and that shift is changing how people live, work, spend and manage their money. For investors, it also creates long-term opportunities in the sectors that cater to older adults, from tech-enabled "aging in place" services to senior housing and multigenerational wealth transfer.
What trends are fueling this demographic shift, and where can investors tap into the long-term growth potential of an aging world?
The realities of an aging world
By 2050, about one in six people globally is expected to be 65 or older, up from about one in 10 today. Several forces are driving this fundamental shift in how the economy functions:
-- Increased longevity. Better healthcare, improved sanitation and increased access to nutrition among developed countries have helped raise average life expectancy to about 73 years globally and 79 in the U.S.
-- Increasing senior wealth accumulation. In the U.S., adults 55 and older control roughly three-quarters of household wealth, driven largely by home value appreciation and growing retirement accounts. This group also accounts for about 40% of disposable income and around 30% of consumer spending - giving older adults outsize influence on the economy.
-- Declining fertility rates. Global fertility rates have been trending down for decades, with many countries falling below the level needed to sustain a stable population. As fewer babies are born and people live longer, older adults will represent a larger slice of the overall population.
An aging population will affect how people live, how they work, what they buy and how they manage their money.
Going long on longevity
Investors can look for opportunities in the sectors positioned to help older adults live independently, access more personalized care, extend their careers, manage the complexities of retirement and transfer wealth to spouses and heirs.
-- Aging in place. Many older adults want to remain in their homes as long as they can. Technologies such as smart home systems, delivery services and telemedicine can help older adults stay connected and comfortable, creating long-term growth potential for businesses that support aging in place.
-- Senior housing and care. A growing older population will likely increase demand for assisted living, independent senior communities and skilled-nursing facilities. Rising life expectancy also means more people will reach ages where additional care becomes essential, reinforcing the need for senior living support.
-- Medical technology and longevity care. Advances in remote patient monitoring, AI-enabled diagnostics, wearable devices and personalized therapies may help shift healthcare from reactive treatment to earlier detection and prevention. As older adults manage more chronic conditions over longer lifespans, companies developing scalable tools for home-based care, precision medicine and age-related disease management could see durable demand.
-- Working longer. More older adults are continuing to work during their typical retirement years to earn income and stay mentally engaged and socially connected. Businesses tied to flexible work, the gig economy and retraining can benefit as careers extend.
-- Transferring wealth. Over the next two decades, trillions of dollars will shift to longer-living spouses, often women, before passing to heirs. As they take on larger roles in financial decision-making, demand is growing for greater representation and more tailored services from the financial-advice industry. Firms offering integrated retirement products and planning services may benefit as investors navigate the financial challenges of longer lifespans.
How to avoid outliving your retirement savings
Longevity is creating new investment opportunities while also lengthening the planning horizon for individuals and families. As lifespans stretch, so does the need for retirement income that can endure across decades.
This means that your savings have a steeper hill to climb: a longer-than-expected lifespan can put considerable strain on even a well-funded plan, increasing exposure to market volatility, inflation, taxes and healthcare costs.
Fortunately, there are steps investors can take to help reduce longevity risk and make their money last longer.
-- Align your investment strategy with your income needs over time. Shift the focus from simply growing assets to generating sustainable, flexible income.
-- Manage taxes strategically. Use approaches such as withdrawal sequencing and tax-efficient asset placement to help preserve more of your retirement income over time.
-- Consider delaying claiming Social Security to help extend the life of your nest egg. For many retirees, waiting to claim benefits can result in higher inflation-adjusted lifetime income, reducing pressure on portfolio withdrawals later in retirement.
-- Incorporate annuities and long-term-care insurance as added financial safeguards. Guaranteed income streams and protection against late-life healthcare expenses can help mitigate longevity risk and provide greater confidence that essential costs will be covered.
Longer lives are here to stay. The question is how investors can position portfolios and financial plans to adapt to a world that's getting older.
Ellen Zentner is chief economic strategist and global head of thematic and macroeconomic investing for Morgan Stanley Wealth Management. Dan Hunt is senior investment strategist at Morgan Stanley Wealth Management.
-Ellen Zentner -Dan Hunt
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July 18, 2026 12:10 ET (16:10 GMT)
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