The Hamtramck Herald presents

The MMC Study

Detroit → MMC / 2100

One city. Many lives. A century of connection.

Long-running research on adult development has found a strong relationship between human connection and happiness. MMC asks what happens when we extend that question to an entire city.

What relationships help people, neighborhoods, schools, institutions, and civic communities endure? What reduces isolation? What creates purpose, belonging, trust, and continuity? What should Detroit begin measuring now so that future generations inherit more than speculation?

The MMC Study follows Detroit and its connected Michigan–Ontario region toward 2100.

Welcome to MMC

MMC means 2100.

Long-running research has shown a strong association between close relationships and human happiness. MMC carries that insight into a larger civic study.

We are asking how relationships among residents, neighborhoods, schools, workplaces, community organizations, newsrooms, governments, and generations might shape the long-term well-being of Detroit and its connected region.

One city. Many lives. A century of connection.

A century-scale question: can the relationships that sustain people also sustain a city?

Can nonpartisan civic work outlive the people doing it?

If relationships help individuals live healthier and more meaningful lives, what relationships help an entire city remain healthy, connected, peaceful, and capable of enduring? MMC expands the unit of study from individual adult development to the relationships between:

  • People and families
  • Neighbors and neighborhoods
  • Students and schools
  • Residents and institutions
  • Workers and workplaces
  • Elders and younger generations
  • Newcomers and lifelong residents
  • Citizens and public systems
  • Michigan and Ontario communities
  • Present-day Detroiters and future Detroiters

MMC does not ask only “what makes a person happy?” It also asks

  • What helps a neighborhood remain connected?
  • What enables people to trust one another across differences?
  • What relationships help residents endure economic, political, environmental, and technological change?
  • What institutions reduce isolation?
  • What public spaces encourage belonging?
  • What happens when residents lose connection with schools, workplaces, neighborhoods, faith communities, local news, or public institutions?
  • Can civic relationships improve individual and community well-being?
  • Can a city deliberately preserve the relationships that help people flourish?
  • Can nonpartisan civic work survive beyond the lives of its founders?

The two-minute overview

From the good life to the good city

01

What the Harvard research suggests

Long-running adult-development research has identified a strong association between close relationships and happiness. Harvard Health's public summary also highlights connection, meaningful activity, volunteering, and purpose.

02

What the original research could not represent

The study's original participants were men drawn from two historically specific groups. Its findings are important, but its original sample does not represent every gender, race, household, neighborhood, nationality, disability experience, income level, family structure, or civic condition.

03

What MMC asks next

MMC broadens the lens from a defined group of individuals to a complex city and its many kinds of residents. It asks how relationships, belonging, institutions, places, and civic practices affect well-being across neighborhoods and generations.

04

Why 2100 matters

A century-scale horizon forces participants to think beyond campaigns, election cycles, grants, individual careers, and organizational founders. MMC asks what evidence, relationships, and institutions should still be useful when today's youngest residents become ancestors.

The Harvard research asks what contributes to a good life. MMC asks what contributes to a good city — and whether that city can remain good across generations.

Primary research domain

Relationships and social connection

One city. Many lives. One century of evidence. Each dimension is tracked longitudinally, not scored once.

  • Close personal relationships
  • Family and caregiving networks
  • Friendship and mutual support
  • Neighbor-to-neighbor connection
  • School belonging
  • Workplace relationships
  • Faith and spiritual community
  • Volunteer and civic participation
  • Trust in local institutions
  • Cross-generational relationships
  • Cross-border Michigan–Ontario relationships
  • Social isolation and disconnection
  • Access to welcoming public spaces
  • Participation in arts, culture, recreation, and community life
  • Sense of purpose
  • Ability to seek and receive help
  • Ability to disagree without abandoning civic relationships

Recurring participant questions

  • Who can you call when you need help?
  • Who depends on you?
  • Where do you feel that you belong?
  • Which neighborhood places help you connect with others?
  • Which institutions have earned your trust?
  • When have you felt isolated from your community?
  • Where do people of different generations meet?
  • What activities give your life purpose?
  • How do you participate in the life of your neighborhood?
  • What relationship would you most want future Detroiters to inherit?
  • What makes cooperation possible across political, religious, racial, national, or economic differences?

These prompts are civic research questions, not clinical instruments, and they are never converted into diagnoses.

Support resources

Some questions touch on isolation, loss, and care. If any prompt causes distress, stop and reach out:

Participation is voluntary, revocable, and never a condition of receiving help.

Participant view

My connection to MMC

  • My longitudinal check-ins
  • My people and support networks
  • My neighborhood connections
  • Places where I belong
  • Institutions I interact with
  • My community participation
  • My reflections and oral histories
  • My expectations for 2100
  • Research updates
  • Privacy and consent controls
  • Download my contributions
  • Relationship information stays private unless you choose otherwise.
  • You are never required to publicly identify family members, friends, children, medical providers, immigration contacts, or other sensitive relationships.
  • MMC does not build visual social graphs of personal relationships without specific, informed, revocable consent.

Research Foundation 001

The Secret to Happiness? Advice From a Long-Running Study

Publisher
Harvard Health Publishing
Author
Matthew Solan
Published
October 5, 2017

Why MMC cites it

The article offers an accessible explanation of the Harvard Study of Adult Development and its findings concerning happiness, close relationships, connection, meaningful activity, volunteering, and purpose. It reports that the study began following 724 men in 1938, gathering health information and repeatedly asking participants — and sometimes their families — about their lives and their mental and emotional well-being.

What it does not establish

The article does not prove that one relationship pattern guarantees happiness, health, or longevity. Its discussion is not a substitute for medical advice, and the original study population was not representative of every community.

Read the article at Harvard Health Publishing

Research integrity statement

MMC is independently developed and is not affiliated with, sponsored by, or endorsed by Harvard University, Harvard Medical School, Harvard Health Publishing, Massachusetts General Hospital, or the Harvard Study of Adult Development.

MMC draws methodological and civic inspiration from publicly available research. It does not reproduce Harvard's study design, claim equivalent scientific authority, or treat findings from historically limited samples as universally applicable.

Findings referenced on this page are research associations from particular study populations — not a universal formula, medical prescription, guarantee of happiness, or proof that relationships alone cause health or longevity.

Who will still be connected in MMC?

Research suggests that relationships matter profoundly to the quality of a human life. MMC asks what that truth means for the life of a city.

Join the century record. Help Detroit document the relationships, places, institutions, and civic practices that give people purpose and belonging. Give future residents evidence of what connected us, what divided us, and what we learned to repair.

One city. Many lives. A century of connection.

  • Relationships shape lives. Civic relationships shape cities.
  • Sign in to history. Stay connected to the future.
  • Detroit, documented through the relationships that sustain it.
  • What connects us now may determine what survives to MMC.
  • A longer life requires connection. So does a longer civic life.
  • The future of Detroit is relational.