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Weve all been there: an unexpected breakup, getting laid off, or tragically losing someone you love.

Silhouette of woman with umbrella under clouds

Unsplash / David Marcu

Life is good, but bad things happen, and our emotional reactions can fire off the gamut.

For most people, at some point, that means youve probably feltdepressed.

That doesnt mean youre mentally ill or broken.

Depression is a very complex phenomenon, Van Dahlen says.

It comes in lots of different sizes and types, with different triggers.

Experts actually arent quite sure.

Because we all need one more thing to worry about once we hit the big 3-0.

Sadness is just one facet of depression.

What differentiates actual depression from fleeting sadness (however intense) is the way it interferes with normal life.

You may be crushed aftera devastating breakup.

Yes, Van Dahlen says.

Does it mean you are bound to be diagnosed with major depressive disorder?

No, not necessarily.

It means life circumstances affected you so significantly youre having severe reactions, she explains.

In some cases, though, it may signal (or turn into) major depression.

Often, it just happens.

You dont have to experience something traumatic for depression to set in.

If you recognize any of these in yourself, tell someone you love and trust how youve been feeling.

Being open andhonest about mental healthis the best way to prevent pain and suffering.

Just another reason to surround yourself with positive people.

Women tend to be teary and sad.

Of course, this is not a steadfast rule and can be different depending on each individual.

Exercise boosts serotonin, endorphins, and otheradvantageous brain chemicals, Amesbury says.

It stimulates the growth of new brain cells just like antidepressants do.

If you’re new to working out, it can havea huge positive impact.

Avoid high-fat and sugar-laden snacks, and instead, opt forcomplex carbohydrates such as high-fiber fruits and vegetables.

Another mood-boosting choice:salmon.

Omega-3 fatty acids can help to increase neurotransmitters (like serotonin) in your brain."

Alcoholis a depressant, Van Dahlen reminds us.

Yet oftentimes, people turn to it to self-medicate.

In the long run, its just going to make you feel even lousier.

We as a species dont like to feel vulnerable, Van Dahlen notes.

When were not feeling ourselves, whether depressed or anxious, we feel vulnerable.

Ironically, that means we shy away from asking for help when we need it the most.

Whether its clinical depression or something else, you want to feel good again, right?

You dont have to figure it out.

Just start treating it as soon as possible.

you’ve got the option to also call theNational Suicide Prevention Lifelineat 1-800-273-8255 for more immediate help.

Watch: 11 Signs of Stress