Perhaps you're having trouble dealing with the stress of exams and don't know where to turn for help. Maybe your cousin has a mental illness. Maybe you've felt nervous for days on end.

The bottom line is that mental health affects everyone's life in some way.

I learned the true value of conversations about mental health last fall. I had an awful day, so I went outside to clear my head. I sat down on a bench outside. I started crying without even realizing it. I couldn't stop. I felt so hopeless and alone.

To my surprise, a random student came up to me and asked if I was okay. He seemed genuinely concerned.

I'll never know who he was or why he decided to ask me if I was okay, but I'll never forget him. I had more faith in the world that day. People are listening. People care. Even strangers care.

One of your friends may be struggling, and you may not know it. Maybe they're staying in on Friday nights more often than usual. Maybe they're not eating enough. If something seems wrong, start a conversation.

It's important to look out for yourself and for your friends. If you're worried about someone else, say something.

It may even save a life.

Here are 10 ways you can start conversations about mental health. Some of these conversation-starters are from Seize The Awkward, a campaign by the American Foundation for Suicide Prevention.

NOTE: If you're worried about a friend's safety, scroll down to the end of this list.

1. "I've noticed you've been down lately. What's going on?"

This is a great way to start a conversation with a friend who is struggling. It shows that you care about them and want to listen. Struggling with your mental health can make you feel alone and like no one cares. Your friend will probably appreciate your concern.

2. "How have you been feeling?"

As simple as it sounds, this question can really mean a lot to someone who is struggling. Approach them with genuine concern. They may say that they're fine and don't want to bother you.

Keep asking. Remind them that you are there for them and will not leave, no matter what they're going through.

3. "If you want to go get help, I'll walk you there."

Especially if you are on a college campus, going to get help can be intimidating. Walking to the counseling/psychological services building may seem embarrassing to some people. If your friend has voiced that they want to get help for how they're feeling, offer to go with them. Remind them that it's okay to get help and that they don't have to struggle alone.

4. "How can I help?"

Although there is no substitute for professional help, be sure to ask your friend how you can help them feel better for the time being. Maybe it's being available to talk.

Offer to help with homework or help them with some errands. Offer to buy them a coffee. Little gestures can mean the world to people who are struggling with their mental health.

5. "I really care about you. Are you okay?"

Once again, saying that you care can mean a lot to someone who is struggling. As someone who has struggled with mental health problems for most of her life, I know that it's easy to feel isolated. Friendship is especially important in times like these.

6. "I know things have been difficult for you lately. I'm here for you."

Acknowledging someone's pain is important. It's easy for people who are struggling to diminish their feelings or problems. Remind them that their problems are valid and that you're there to support them.

7. "You seem really stressed. Do you want a hug?"

I wouldn't go up to a random stranger and say this, but it's up to you. Hugs can do a lot. I know this from experience.

8. "It seems like you've been dealing with a lot. Do you want to talk about it?"

Sometimes, people don't want to talk about what's bothering them, and that's okay. If they say no, don't be offended.

Just offering to be there to listen can mean a lot to someone who is struggling. It reminds them that they can talk to you in the future.

9. "I know you're struggling right now. It's going to be okay. I'm here for you every step of the way."

Reassure your friend that even though it may seem like the world is crashing down on them, they are going to be okay. They won't feel this awful forever.

10. "Are you feeling suicidal?"

If your friend seems to be in a crisis and you're worried about their safety, it's okay to be direct. Asking someone if they're suicidal will not make them more likely to harm themselves. If they say yes, do not let them be alone. If they seem to be in imminent danger, call 911.

Click here for additional information on how to help a friend in a crisis.