The Claim

Social isolation is associated with a 35% increase in mortality risk among humans.

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
64score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Quantitative
3 studies reviewed
In plain English

People who experience prolonged social isolation have a 35% higher chance of dying compared to those who maintain regular social connections.

See the scientific wording

Social isolation increases mortality risk by 35% in humans.

Why this might work

When someone is alone for a long time, their body stays in a state of high alert, which causes more stress hormones to circulate. These hormones make the body produce more inflammation, which over time damages organs and weakens the ability to fight infections, making it more likely for the person to get seriously ill or die.

Suggested mechanismbased on 4 studies

What the research says

3 studies

  1. Study: Improvement of Social Isolation and Loneliness and Excess Mortality Risk in People With Obesity

    This study found that obese people who feel less lonely and isolated are much less likely to die early — showing that being alone can be as dangerous as smoking or being inactive. So yes, social isolation makes people more likely to die sooner.

  2. Study: Sociodemographic heterogeneity in the association between social isolation and all-cause mortality among Japanese older adults: JAGES longitudinal panel study

    People who are socially isolated — like those with few friends or family connections — were found to die sooner than those who are more connected, especially if they’re older, poor, or less educated. This means being alone for a long time can seriously hurt your health.

  3. Study: How digital and social isolation drive frailty transitions in middle-aged and elderly adults populations: a seven-year multicohort study.

    This study found that older people who are socially isolated are much more likely to get sicker and die sooner than those who stay connected. It shows that being alone, especially for a long time, makes your health worse and increases your chance of dying.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.