The web has a lot on the subject. See: Lucid Dreaming by LaBerge - Stanford,, he provides good tools do deal with and benefit from LD.
just been diagnosed with borderline sleep apnea what does this mean and entail any advice from anyone welcome
Lucid dreams alone are one thing, but if they are part of a bigger picture or a set of symptoms, getting evaluated by a sleep doctor could rule out anything going on that could benefit from treatment.