Pop star Lady Gaga became the second entertainer this week to reveal she has struggled with depression.

"I've suffered through depression and anxiety my entire life; I still suffer with it every single day," the singer, 29, told Billboard magazine in an interview posted Thursday, explaining her empathy with the at-risk youth her Born This Way Foundation supports. "I just want these kids to know that that depth that they feel as human beings is normal. We were born that way. This modern thing, where everyone is feeling shallow and less connected? That's not human."

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The Grammy Award winner said that, "Depression and anxiety really link" these youths, noting, "There is something in the way that we are now, with our cellphones and people are not looking at each other and not being in the moment with each other, that kids feel isolated. . . . These kids just want to feel human, but they feel like robots. They don't understand why they're so sad. There are scientific reasons, which the foundation researches, why you feel sad when you look at your phone all day."

StorySilverman: I've battled despression since 13

Earlier this week, comedian Sarah Silverman said she has suffered from depression since age 13, but that treatment and awareness of the physical symptoms have allowed her to live a normal life.

Gaga last December revealed she had been raped at 19 by an unnamed man 20 years older. "Rape survivors, abuse survivors come to us. I've met a lot of kids who have been sexually abused. . . . It was extremely cathartic to know that not only am I not alone, but that other men and women aren't alone -- we all have each other," she said.

Her new ballad, "Til It Happens to You," co-written with Oscar nominee Diane Warren, is featured in the documentary "The Hunting Ground" about sexual assaults on college campuses. The song's Catherine Hardwicke-directed video graphically addresses the issue.