Dream recall also tends to be somewhat lowered in people not getting enough sleep. I'd say that accounts for a good percentage of the population at the moment.
I always feel so new-agey when going into the subject of dreams. But sometimes it's hard to resist. Keeping a journal of dreams upon waking is the best way I can think of to improve recall. Certainly seems like a good first measure before resorting to potentially unneeded medication. For someone with little to no dream recall it usually starts out as just vague feelings scribbled on paper, but for most people the training usually can extend that at a fairly rapid pace.
I have not really had any dream recall in several decades. About 10 years I did a dream interpretation workshop and did actually remember a dream to interpret for that workshop. The mind does work in mysterious ways sometimes. If you really need to remember a dream it can happen.
I do have a vitamin b6 deficiency which explains why I haven't had any dream recall in so many years. I find that sometimes when I feel like I am tossing and turning instead of sleeping soundly I remember bits and pieces of stuff that I may or may not have been dreaming about or were just going over in my head. I think other people may find that if you can't sleep you find yourself thinking about or dreaming about whatever you are worried about while you toss in turn in bed. It is hard to say if it was dreaming or worrying.
For even more new age tips I think I read somewhever that if you sleep with a certain kind of crystal under your pillow it can help with your dreams.
http://www.handywerk...reampillows.htm
But dreams are interesting things to think about and analyze. Keeping a journal of dreams is a good thing.
They also recommend not moving around too much when you first wake up. I think that if you remain in the same position as you were in when you had the dream you may actually remember that dream a little better.