How do you treat friends with major depression or other mental illness?

[General Section question: Let’s please stick to the topic :)]

Perhaps it’s just me, but I seem to attract a lot of people who need help, who are suffering from a major mental illness, or are simply depressed. I try to help them through these rough times by being supportive and pointing them to the resources that will get them long-term solutions.

What about you? Do you have friends who are depressed? Do you try to help them, if you do?

Do you restrict your contact with such people, because they may be too needy? Do you protect your own peace and serenity above all else?

How far would you go to help a friend?