9 Non-Obvious Signs Someone Is Depressed, According To Research

Why some of your friends may have started to pull away.

Last updated on Mar 09, 2023

Non-obvious depressed woman. Eduardo Ramos | Unsplash
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By Aviva Patz

Most of us would recognize classic signs of depression, with its heavy veil of sadness and hopelessness. But what if you just started getting stomachaches or were suddenly very snappy? Could you be depressed without knowing it?

"Depression doesn’t always look like debilitating sadness," says Richard Kravitz, MD, MSPH, a professor of internal medicine at the University of California, Davis, and an expert in identifying depression in primary care settings. "Patients are reluctant to consider depression as a cause of their symptoms—in part because they may equate it with weakness, but also in part because they simply don’t associate those symptoms with depression."

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Accurately identifying the problem is key, he adds, because the sooner you get treatment, the easier it will be to return to your happy, healthy self.

Here are 9 non-obvious signs someone is depressed, according to research

1. You're in pain

man rubbing his eyes fizkes / Shutterstock

Depression and pain share some of the same biological pathways and neurotransmitters. About 75% of people with depression suffer recurring or chronic pain, research shows. In a Canadian study published in the journal Pain, people with depression were four times more likely to have intense or disabling neck and low back pain than those who were not depressed.

"When you're in a negative state, you're apt to tune into your body more carefully, and therefore feel any discomforts more acutely," Kravitz explains.

You might also notice other signs of depression like stomachaches and headaches, or just experience greater sensitivity to pain in general. A 2008 study in the Archives of General Psychiatry found that when people with depression anticipate pain, their brain activity indicates more emotion and less coping, so they're less able to handle the hurt.

RELATED: 4 Subtle Psychological Signs You're Depressed

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2. You're gaining weight

woman eating ice cream and watching movie Tero Vesalainen / Shutterstock

Where did that extra roll come from? Maybe from all the late-night ice cream, you've been inhaling? Or from the frozen dinners you've been eating because you don't feel like shopping or cooking? 

Although comfort food can raise levels of the mood-boosting brain chemical serotonin, over time emotional eating can lead to weight gain and feelings of guilt and shame, plus it does nothing to treat the underlying causes of depression.

A new study in the journal Obesity confirms that high levels of stress and depression make it tough to drop pounds and stick to effective weight-loss strategies. On the flip side, some people may lose weight, as depression zaps their appetite.

RELATED: 11 Tiny Things To Stop Doing If You’re Trying To Manage Depression

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3. You have a short fuse

angry man at work Lipik Stock Media / Shutterstock

If the slightest mishap sends you into a rage, or grouchy is your new normal, you may be depressed. In a 2013 study published in the journal JAMA Psychiatry, 54% of people with depression reported feeling hostile, grump—y, argumentative, foul-tempered, or angry.

"Once you’re on the negative side of the house, you're more accessible to the rooms where other negative moods hang out — irritability, frustration, and anger," says Simon Rego, PsyD, associate professor of clinical psychiatry and behavioral sciences at Albert Einstein College of Medicine and director of psychology training at Montefiore Medical Center. "You're not directly there, but it's a short walk."

RELATED: The (Kinda Creepy) Way I've Learned To Treat My Depression

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4. You feel nothing

depressed woman lying in bed Gladskikh Tatiana / Shutterstock

Feeling blah? Neutral? Numb? "Most of us have motivations that get us out of bed in the morning, whether it's work, exercise, socializing, or making breakfast," says Rego. "But for people who are depressed, those pulls dry up." And things that once brought tears or smiles now barely register.

This kind of zombie behavior is a hallmark sign of depression, and it can make you seem cold, distant, or aloof, pushing away the people who would otherwise give you love and support.

RELATED: Psychology Reveals 8 Odd Behaviors Often Linked To Hidden Depression

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5. Your drinking has increased

upset woman with drink in her hand Inside Creative House / Shutterstock

If you're having several glasses of alcohol every night, it's probably more than a rough day at work. Nearly one-third of people with depression also have an alcohol problem, research shows

And though one drink can take the edge off, a second or third can amplify negative emotions and signs of depression — anger, aggressiveness, anxiety, and greater depression.

It's important to note: You don't have to be a raging alcoholic to be abusing alcohol. The healthy limit, according to the U.S. Department of Health and Human Services, is one drink per day for women, and two drinks per day for men.

RELATED: The Simple Choice That May Be The Secret To Healing Depression

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6. You're glued to social media

man on phone in dark finwal89 / Shutterstock

Or gambling or shopping...basically doing anything in excess, especially online. Several studies confirm that people who go online compulsively and have more virtual social interactions than real ones may be depressed. 

They may feel deprived of real human companionship and/or may be using the online world to escape from their thoughts and feelings.

While Internet addiction and depression are separate diagnoses, they often overlap. "The quest for a short-term boost is a common coping mechanism," says Rego.

RELATED: I Left My Children When My Mental Health Failed

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7. Your head is in the clouds

woman looking out window Ground Picture / Shutterstock

Daydreaming a lot lately? About becoming a movie star, falling madly in love, how your friend's kid is smarter than yours or the boss has it in for you? 

Psychologists from Harvard University have shown that we're happiest when our minds are firmly rooted in the present moment, and when our minds wander, it can make us wistful, anxious, and unhappy.

While daydreaming can help find creative solutions to problems, more often than not it's linked to signs of depression and low mood.

RELATED: A Therapist Shares 10 Things To Do At The First Twinge Of Depression

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8. You can't make up your mind

upset woman looking at bills Kmpzzz / Shutterstock

We make upwards of 70 conscious decisions every day, Columbia University research shows, and most of them are no-brainers. Snooze or wake up? 

Get dressed or stay in pajamas? Eat oatmeal or eggs? Read or watch TV?

"When we’re depressed, those cognitive processes take a big hit," says Rego. "Little things we normally don't think twice about suddenly become weighty decisions."

RELATED: 8 Tiny Habits That Actually Improved My Life When I Was Really Depressed

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9. You've stopped brushing your hair

woman with frizzy hair puhhha / Shutterstock

Even if your grooming routine was modest, to begin with, it may disappear when you're depressed. In a 2014 survey of more than 10,000 people, 61% who had poor oral health reported suffering from depression. And the more dental issues they had, the more severe the depression was.

"It's a spectrum," says Rego. "Neglecting your physical well-being and appearance is only problematic when it crosses over into distress or dysfunction." Ultimately, not caring what you look like on the outside is a strong sign of problems happening on the inside and a sign of depression.

If you or somebody that you know is experiencing a mental health crisis, there is a way to get help. Call SAMHSA’s National Helpline at 1-800-662-HELP (4357) or text "HELLO" to 741741 to be connected with the Crisis Text Line.

RELATED: Woman Seeks Advice After Learning Boss Told Co-Workers She Was In A 'Psych Ward' When She Took Time Off

Aviva Patz is the executive editor of Reader's Digest and an award-winning health writer.

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