In the weeks before taking his own life, actor Robin Williams had, according to one of his reps, struggled with "severe depression" and checked into a rehab facility in late June.

Psychiatrist Dr. Keith Ablow weighed in on Fox and Friends this morning on the struggle against depression for millions of Americans. Peter Johnson Jr. asked Ablow to address those who may feel even more hopeless in their own battles with depression, given Williams' tragic death.

He stressed that there are more tools than ever before to fight depression and emphasized that people need to take action, especially if they are seeing a doctor and not feeling better.

"Don't be afraid. No podiatrist keeps a patient for eight years who isn't getting better. For some reason people hang out with their psychiatrists for eight years and say 'I'm a little better, maybe a little worse.' Get rid of 'em. Move on if you're not much better," said Ablow.

He explained that depression robs a person of the belief that there are better things to come in their life. Ablow believes people should "be in fear" of depression because of its potentially lethal consequences, but added that "everybody can recover from this" because of improving treatments.

Watch his full analysis above.

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