So on average, we help clients get past some problems and improve their well - being, with some fading of effects over time from a single dose of therapy. (psychotherapynetworker.org)
It's particularly hard to convey something that has a devastating effect over time. (dotearth.blogs.nytimes.com)
This method works because it utilizes small increases every week that have a cumulative effect over time. (cathe.com)