"(CNN) The video above is hard to watch. If you'd prefer not to, here's what it shows: A woman who has collapsed in the middle of a dollar store, and her toddler daughter, screaming and crying and clutching her mother's listless body. 

She takes her hand and tries repeatedly to pull her mother up, but the woman does not stir. The girl uses both hands and continues to pull at her, reaching around her mother's neck and trying to pull her head up; grabbing her chin and patting it. 

    The video, taken on September 18, was released by the Lawrence Police Department in Massachusetts. Police say the mother was suffering from a drug overdose. They said first responders needed two doses of Narcan to revive her. (Narcan is a medicine that blocks the effects of opiates.)

    It's the sort of video that makes you wonder why it was taken; why it is important to watch. And, perhaps more significantly, why something like this happens in the first place."

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