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Swooni Research · August 2026 edition · Updated monthly

The Swooni Relationship Fitness Index

A practical framework for understanding the small patterns that help relationships stay connected—grounded in public research, transparent about its limits, and designed to improve over time.

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The evidence baseline

Five signals that explain why connection deserves daily care.

These figures come from global public-health reporting, longitudinal research, and relationship-science guidance. They provide context—not a single combined score.

Evidence signal

1 in 6

People globally reporting loneliness

The WHO estimates that 15.8% of people globally reported loneliness between 2014 and 2023.

Read carefully: This is a global loneliness estimate, not a measure of romantic relationship quality or Swooni members.

World Health Organization

Evidence signal

+29%

Higher heart-disease risk associated with poor social relationships

A synthesis cited by the U.S. Surgeon General associated poor social relationships with a 29% increase in heart-disease risk.

Read carefully: This is an association across social-connection research and does not establish that one relationship habit causes a health outcome.

U.S. Department of Health and Human Services

Evidence signal

+32%

Higher stroke risk associated with poor social relationships

The same synthesis associated poor social relationships with a 32% increase in stroke risk.

Read carefully: This is a population-level association, not a prediction or clinical assessment for an individual or couple.

U.S. Department of Health and Human Services

Evidence signal

87 years

Years in the Harvard adult-development study

The Harvard Study of Adult Development began in 1938 and continues to examine relationships, health, and happiness across generations.

Read carefully: Its original cohorts were not globally representative; the value here describes study duration, not an effect size.

Harvard Study of Adult Development

Evidence signal

5:1

Positive-to-negative interactions during conflict

The Gottman Institute describes five or more positive interactions for every negative interaction during conflict in stable, happy relationships.

Read carefully: The ratio is a research-informed benchmark, not a diagnostic threshold or guarantee for a particular relationship.

The Gottman Institute

The five dimensions

Relationship fitness is a pattern, not a verdict.

The framework organizes relationship fitness around five observable areas. Monthly editions can refine the evidence without reducing a relationship to one opaque number.

  1. 01

    Connection

    Do both partners feel noticed, supported, and emotionally reachable?

    Track small bids for attention, moments of warmth, and whether support is available when it matters.

  2. 02

    Communication

    Can needs and feelings be named without the conversation becoming unsafe?

    Look for clarity, listening, softer starts, and enough room for both perspectives.

  3. 03

    Appreciation

    Are positive moments visible, specific, and repeated?

    Notice gratitude, affection, humor, and everyday signals that keep goodwill available during stress.

  4. 04

    Repair

    After friction, can the couple take responsibility and find their way back?

    Watch for accountability, de-escalation, apology, reassurance, and completed reconnection.

  5. 05

    Continuity

    Do useful relationship habits survive busy weeks and difficult seasons?

    Measure consistency gently: repeated check-ins matter more than an occasional perfect conversation.

Methodology

What this edition measures—and what it deliberately does not.

The evidence baseline selects a small set of clear signals from authoritative public sources. Selection favors source transparency, relevance to social or relationship connection, interpretability, and an honest limitation for every figure.

The figures are not mathematically combined. The five Swooni dimensions are a practical organizing framework, not a validated clinical instrument. This edition contains no private, individual, inferred, or anonymized Swooni member data.

A future edition may add privacy-safe aggregate findings only after methodology review, minimum sample thresholds, clear consent and governance, and safeguards against identifying a person or couple.

Included

  • A primary or authoritative public source is available without private access.
  • The displayed claim can be located directly in the cited source.
  • The evidence is relevant to social connection, relationship patterns, or relational wellbeing.
  • The figure can be explained with its population scope, context, and limitation.

Deliberately excluded

  • Swooni member data, inferred member attributes, testimonials, or internal product analytics.
  • SEO-tool estimates, vendor claims, or statistics without a retrievable original source.
  • Unsupported causal, clinical, diagnostic, or person-level conclusions.
  • A combined score that would imply more precision than the evidence supports.

Monthly review protocol

  1. 01Reopen every cited source and verify the displayed figure, evidence locator, scope, and limitation.
  2. 02Search for newly published primary or authoritative evidence that materially changes the baseline.
  3. 03Synchronize the HTML report, JSON, CSV, Markdown, press references, sitemap metadata, and regression checks.
  4. 04Record both substantive changes and source reviews that produce no substantive change.

How to cite

A citation you can copy without guessing.

Swooni. (2026). Swooni Relationship Fitness Index (August 2026; reviewed 3 August 2026). https://swooni.io/relationship-fitness-index

When citing an individual figure, cite its original source alongside the Swooni Relationship Fitness Index.

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Sources and reuse

Built to be checked, cited, and improved.

JSONMarkdownCSV
  1. 01World Health Organization
    From loneliness to social connection: charting a path to healthier societiesChapter 2, section 2.2, Figure 2
    Open evidenceReviewed 3 August 2026
  2. 02U.S. Department of Health and Human Services
    Our Epidemic of Loneliness and IsolationChapter 2, Cardiovascular Disease, page 26
    Open evidenceReviewed 3 August 2026
  3. 03Harvard Study of Adult Development
    Things money cannot buy — like happiness and better healthIntroduction, the paragraph identifying the study's 87th year
    Open evidenceReviewed 3 August 2026
  4. 04The Gottman Institute
    The Magic Relationship Ratio, According to ScienceThe section beginning 'That magic ratio is 5 to 1'
    Open evidenceReviewed 3 August 2026

Keep exploring

Turn the evidence into a relationship practice.

Read the public-health case for relationship fitness, explore the science, or see how Swooni brings small connection habits into everyday life.

What 1 in 6 actually meansWhy relationship health matters

Our mission

We're making the scientific formula for lasting love accessible to every couple, everywhere.