What is postpartum psychosis and why is it central in the Lindsay Clancy trial?

Clancy is accused of killing her three children in Massachusetts in 2023 and her defence team point to severe postpartum mental illness.

If you can't understand that it's evil to kill children, you are a mortal danger to the innocent and therefore not fit to live in a just society.

While Clancy admitted to killing her children, the defense has argued that due to postpartum psychosis and overmedication, she should not be held criminally responsible.

Clancy’s live-streamed trial has become fodder for amateur sleuths to push viral conspiracy theories that threaten to undermine efforts to de-stigmatize illness, experts say Meghan Cliffel was riding the subway in New York City in December 2015 when she became convinced the entire city belonged to a cult that was plot

The high-profile murder trial of Lindsay Clancy's has put the condition in the spotlight. Women who have had it call for more research and understanding of a difficult mental illness.