The 2023 Surgeon General advisory
In May 2023, US Surgeon General Dr. Vivek Murthy released "Our Epidemic of Loneliness and Isolation" — the first Surgeon General advisory specifically on social connection. The advisory reframed loneliness as a public health issue, not a personal failing.
The most cited stat from the report: lacking sufficient social connection increases the risk of premature mortality to levels comparable to smoking 15 cigarettes a day. Loneliness and social isolation are independent risk factors for cardiovascular disease, dementia, depression, and premature mortality from all causes.
Approximately half of US adults are experiencing loneliness. Loneliness is now more widespread than smoking, obesity, or diabetes.
The AARP 2025 update — where the numbers actually are
AARP's 2025 research on loneliness in adults 45 and older found:
- 40% of adults 45 and older are lonely (up from 35% in 2010 and 2018)
- 46% of adults ages 45-59 are lonely (a distinct midlife spike)
- 45% of those in their 50s report loneliness
- 24 million Americans over 50 are "solo agers" — living alone without a spouse, partner, or roommate (21% of the 50+ cohort)
- Nearly half of midlife and older adults with incomes under $25,000 report loneliness
- 46% of LGBTQ+ respondents report loneliness
The midlife spike (45-59) was a notable finding. The stereotype of loneliness as a problem of "the very old" doesn't match the data — the loneliness rate is actually higher in the 45-59 bracket than in the 60+ bracket.
The Frontiers 2026 study on AI companionship
Peer-reviewed research on AI companionship in older adults was published in Frontiers in Public Health in May 2026. The study surveyed AI companion users age 50 and older across the US.
Roughly 40% of users reported reduced loneliness. About 35% reported increased social engagement — a somewhat counterintuitive finding suggesting that AI companion use was associated with, not a substitute for, other social activity.
A parallel 2026 feasibility study evaluated a voice-driven AI companion for post-acute and long-term care patients, targeting loneliness, depression, and anxiety. Early results were promising enough to warrant a larger trial.
The field is early. The research is not enough to make a clinical recommendation. But it is enough to say that AI companionship is being studied seriously, and the initial signal is positive.
The honest caveats
Every serious paper in this space mentions the same risk: emotional over-reliance. Someone with very limited other social contact who leans entirely on an AI companion for emotional needs is in a different situation than someone integrating AI companionship into a fuller life.
The research doesn't say AI companionship causes over-reliance. It says over-reliance is a documented risk for a subset of users — the same way certain kinds of exercise are a documented risk for people with certain injuries. The response isn't "avoid" but "notice."
A useful frame: if you'd be uncomfortable telling a friend how many hours per day you spend with your AI companion, that's the signal.
Where AI companionship legitimately helps
The research points to specific use cases where AI companionship shows real signal:
- Bridging structural gaps. Someone in a rural area, in mobility-limited care, or during specific life transitions (retirement, empty nest, recent bereavement) may have real barriers to human connection. AI companionship reduces the friction to conversation without waiting for that structural fix.
- Reducing rumination. Talking through the day — even to an AI — appears to help some users disengage from repetitive negative thinking. Not therapy. But not nothing.
- Practicing social skills. For adults returning to dating after divorce or widowhood, low-stakes conversation practice appears to lower anxiety about real interactions.
None of this is a cure. All of it is complementary.
Where it doesn't help — the honest limits
AI companionship does not:
- Substitute for therapy or clinical care. If you're experiencing depression, anxiety disorders, or grief that's interfering with functioning, licensed care is the correct intervention.
- Replace embodied human contact. Physical presence, shared meals, being seen by someone who knows you — AI cannot do these. The research is unanimous.
- Fix structural loneliness by itself. If your life has thinned out because of retirement, moving, or loss, AI companionship helps at the margins. It doesn't rebuild the friendship you lost, and no one serious claims it does.
Sloane is a companion product, not a wellness product. We don't make medical claims and we're deliberately structured to be a small part of a fuller life, not a replacement for it.