One cannot deny the fact that females on ads or covers sell usually better than males or get more attention except of course for a few examples like male fitness mags or some male product ads.
You will have women on women’s magazines but hardly men. And you’ll have women on many men’s magazines too – hardly ever men.
So if you are a woman you are constantly faced with other women looking perfectly (photoshopped) pretty at you.
How is this influencing the way they feel about themselves?