Really?

Business books target the people that want to be exceptional, want to make more money,want to share a special idea or way of doing things with the world - or so they say. But that makes it sound like depressed people aren't - or shouldn't be - in business.
Deep in the depths of depression, who can pick up a book about rallying the troops to victory and not feel inadequate? Designed to inspire, a lot of these books do the opposite for a depression suffererer - and the truth is, plenty of business owners wrestle with depression.
So how do depressed business people succeed? Do they? Can they grow their companies while neglecting themselves, or do both suffer if both are not addressed? I don't know the answers yet.
Do you own a business? Are you depressed? What do you do to make sure your business stays on track, even if you don't?