Certainly folk are always looking for cures or remedies to personal problems of illness & ailments both physically & mentally!
Also diet weight loss exercise & relationships are good factors to consider too & so is 'how to make money.' All in all I think people are looking for ways to help themselves or their loved ones.
It is a good idea to create a good headline for your topics to try to entice the reader to read more but the money generated through the advertising revenues will surly stack up in the long run depending how you market your work plus how many streams of income you create now & in the future will all add up.
As I joined here on hubpages I saw the revenue created by a few users as samples & these writers have been churning out articles for over 2 & 3 years & many generate around $1-2000 per month for their efforts, so I suppose it all takes time with ongoing effort with the focus of monetising your work for the future.
These are just my opinions & I hope you enjoyed them.