Research from the CDC shows that loneliness and social isolation are linked to a higher risk of health problems, including heart disease, stroke, dementia, depression, and anxiety. About 1 in 3 U.S. adults report feeling lonely, and about 1 in 4 say they lack social and emotional support. The good news is that building stronger connections, even in small ways, is linked to better sleep, lower stress, and improved overall wellbeing.
If You’re Having Thoughts of Suicide or Self-Harm
Loneliness and isolation are listed by the CDC as risk factors connected to suicidality and self-harm. If you are having thoughts of suicide or hurting yourself, please reach out for immediate support. In the U.S., you can call or text 988 to reach the Suicide & Crisis Lifeline, available 24 hours a day. If you or someone else is in immediate danger, call 911. This article is educational and cannot replace help from a crisis counselor or mental health professional.
What “Social Connection” Actually Means
The CDC describes social connection as the size and variety of a person’s relationships, the roles those relationships play, and whether they feel positive or negative. It’s not just about how many people you know. It’s about whether you feel like you belong and have the support you need.
Two related but different ideas are worth understanding:
- Social isolation is an objective lack of relationships or contact with others. A person can be isolated without feeling lonely.
- Loneliness is the subjective feeling of being disconnected, even if a person is surrounded by others. Someone with many friends can still feel lonely.
What the Research Shows About Isolation and Health
According to the CDC, social isolation and loneliness can raise the risk of several health conditions, including:
- Heart disease and stroke
- Type 2 diabetes
- Depression and anxiety
- Dementia
- Earlier death
On the other side, the CDC notes that stronger social connection is linked to a lower risk of chronic disease, better stress management, healthier eating and activity habits, and improved sleep quality. A good wind-down routine paired with real social contact during the day can support both better sleep habits and steadier mood.
The National Institute of Mental Health (NIMH) points out that mental health is more than the absence of illness. It includes emotional, psychological, and social wellbeing, and self-care practices, including staying connected to others, can support both your mental health and your recovery if you’re managing a mental health condition.
Who Is Most at Risk
The CDC identifies some groups who face a higher risk of isolation or loneliness. If any of these apply to you or someone you care about, extra attention to connection may help:
- Older adults, especially those living alone
- Young adults
- Low-income adults
- People with limited transportation or living in rural areas
- Immigrants and people facing language barriers
- People managing a chronic illness, disability, or mental health condition
- People who have recently gone through divorce, job loss, or the death of a loved one
- People who identify as gay, lesbian, or bisexual
If you fall into one or more of these groups, that doesn’t mean poor health outcomes are guaranteed. It simply means connection may take more intentional effort, and that effort is worth it.
Signs You Might Benefit From More Connection
Use this checklist to reflect on your own social wellbeing. You don’t need to check every box for connection to be worth prioritizing.
- I go multiple days without a real conversation (in person or by phone or video)
- Most of my social contact happens only through text or social media
- I feel like I don’t have anyone to call if I needed help
- I’ve pulled back from activities or groups I used to enjoy
- I feel disconnected even when I’m around other people
- A big life change (move, loss, retirement, new baby) has shrunk my usual circle
Simple Ways to Build Social Connection
You don’t need a big life overhaul to strengthen connection. Small, repeatable habits tend to work better than one-time efforts.
- Schedule contact like an appointment. A recurring weekly call or coffee with the same person is easier to keep than a vague “we should catch up.”
- Choose activities that create repeat contact. A class, walking group, volunteer shift, or place of worship puts you around the same people regularly, which is where relationships tend to grow.
- Swap some screen time for shared time. Digital contact has a place, but face-to-face or voice conversation tends to feel more connecting. If you’re not sure where your time actually goes, a digital detox can help you see the gap.
- Combine connection with another healthy habit. Walking with a friend, cooking together, or spending time in green space with others can support wellbeing on two fronts at once.
- Have a plan for stress in the moment. If reaching out feels hard when you’re anxious or low, simple breathing exercises can help you feel steady enough to make the call or send the text.
- Be the one who reaches out first. Many people feel isolated at the same time. A short message can restart a relationship that quietly went quiet.
Practical next steps for Social Connection and Health
- Are you having thoughts of self-harm or suicide? If yes, contact 988 or a mental health professional now, before anything else on this list.
- Do you feel isolated most days, not just occasionally? Consider talking to a primary care provider or counselor about how you’re feeling, in addition to trying the connection strategies above.
- Do you feel lonely sometimes but function well day to day? Try one small, repeatable connection habit for the next two to three weeks and notice if it helps.
- Are you doing fine but want to strengthen your relationships? Focus on the quality of your closest few connections rather than the number of people you know.
Where current knowledge about Social Connection and Health stops
Research on social connection and health is observational in most cases. This means studies can show that loneliness and health problems tend to occur together, but they can’t always prove that isolation directly causes a specific illness. Other factors, such as existing health conditions, income, or life stress, may also play a role.
Individual experiences vary. Some people function well with a small circle of close relationships, while others need a wider network. There is no single “right” amount of social contact, and research in this area continues to evolve.
Reader questions on Social Connection and Health
Is loneliness the same as being alone?
No. You can be alone without feeling lonely, and you can feel lonely in a crowd. Loneliness is about the gap between the connection you have and the connection you want, not simply how much time you spend around others.
Can online relationships count as social connection?
They can play a role, but research and public health guidance generally point to in-person or voice-to-voice contact as more strongly linked to wellbeing than text-based interaction alone. Online contact may work best as a supplement to, not a full replacement for, face-to-face relationships.
How much social contact do I actually need?
There’s no official number. What matters more, according to CDC guidance, is whether your relationships feel supportive and meet your personal needs for closeness and belonging, not a specific count of contacts or hours.
When should I talk to a professional instead of just trying to socialize more?
If feelings of loneliness or isolation are persistent, are getting worse, or come with symptoms like ongoing low mood, sleep changes, or loss of interest in daily life, it’s a good idea to talk to a primary care provider or mental health professional. They can help figure out what’s going on and what kind of support fits your situation.
Educational Disclaimer
This article is for general educational purposes only and is not medical or mental health advice. It is not a substitute for diagnosis, treatment, or guidance from a qualified healthcare provider. If you have concerns about your mental or physical health, please consult a licensed professional. If you are in crisis, call or text 988 (Suicide & Crisis Lifeline) or call 911.