The 50% Proposition

Approximately 29% to 30% of individuals will experience a mental health condition by the age of 75—the estimated ‘lifetime prevalence’ of mental disorders. This was the finding of a recent international study, Age Of Onset And Cumulative Risk Of Mental Disorders: A Cross-National Analysis Of Population Surveys From 29 Countries.

The research also found, using a more comprehensive measure called lifetime morbid risk (or LMR, for short), that nearly 50% of adults will experience a mental health condition over their lifetimes.

This squares with the U.S. prevalence numbers. 22.8% of all U.S. adults, an estimated . . .