A Los Angeles jury has handed down an unprecedented win for a young woman who sued Meta and YouTube over her childhood addiction to social media, BBC reported. 

Jurors found that Meta, which owns Instagram, Facebook and WhatsApp, and Google, owner of YouTube, intentionally built addictive social media platforms that harmed the 20-year old's mental health.

The woman, known as Kaley, was awarded $6m (£4.5m) in damages, a result likely to have implications for hundreds of similar cases now winding their way through US courts.

Meta and Google said separately that they disagreed with the verdict and would both appeal. Meta said: "Teen mental health is profoundly complex and cannot be linked to a single app, according to BBC.