Yes it can but depression is a serious medical condition. You should talk to your doctor for more ways depression can affect you.
Absolutely. Depressed people often lose interest in sex.
It depends on what kind of woman are you! eg. A pornstar maybe, A sex addict (But they have a possibility to lose their interest)
Yes it can. You should make an appointment with a doctor that specialises in the reproductive organs to see if they can help you:)
http://www.yousaytoo.com/darbiz/why-men-lose-interest-in-sex/6585
yes
Young to older women are more likely to lose interest regarding sex if they are constantly nagged about it. No woman of any age should ever be forced into doing something they do not wish to do. Sex should be a beautiful experience and being forced or giving in simply makes that experience an ugly one.
At 42, you need to be more creative, just the sex doesn't really please a mature man.
Certainly. Anyone can lose interest in sex. I believe, although I am young, that when a woman loses her interest in sex or libido it is more a matter of loss of love, or adequate stimulation, or age. It is of course maybe due to sexual mutilation as practiced in many third-world countries because of superstition.
Motivation
Never. People never lose there desire for sex, just sometimes they get tired of doing it, or they feel it is awkward to make love at an older age. But your sex hormones never die, so there is no "age" when you lose desire for sex.
"Some symptoms of clinical depression include: fatigue, thoughts and/or attempts of suicide, loss of appetite, overeating, insomnia, loss of sex drive, no interest in usual activities, crying often, and being easily angered."
It means a scholarly or scientific interest in sex and sexuality.