0.9 % work well, but are usually more expensive than other simple interventions like diet and exercise. (completehumanperformance.com)
While there are certainly other causes for suffering and conflict among couples, it still makes sense to try simple interventions first especially when they hold a good possibility for improving the situation. (carycounseling.com)
We frequently see stories about mothers who suddenly kill all of their children, when when simple intervention could have saved them. (skepticalob.com)