Wiktionary
lose their mind
vb. 1 (alternative form of lose one's mind English) 2 (en-third-person singularlose their mind)
Usage examples of "lose their mind".
The People had known the virtue of purple thorn for hundreds upon hundreds of turningsindeed, People who were denied its fruit had actually been known to lose their mind voices entirelyyet there had never been enough of it, and it had always been almost impossible to find in sufficient quantities.