Understanding usage by children is key to studying potential harms and benefits, psychiatrists say.

Ayatollah Khamenei praises the Revolutionary Guard amid anger over the downing of a passenger jet.

The world's second largest economy has seen weak domestic demand amid a trade war with the US.

A long signature, a dramatic procession, and cries of "hear ye" were all part of the impeachment trial.

Presentation slides published online give an insight into how the future relationship might pan out.

At the same time, China's population hit 1.4 billion in 2019 - but the gender imbalance remains.

Nelson Mandela's great-granddaughter says the former President wouldn't be '100% happy' with modern South Africa.

Mark Lawrenson takes on King Gary star Tom Davis to make predictions for this weekend's Premier League fixtures.

Conor McGregor says he is in a "better place" than he was a few years ago as he prepares to make his UFC comeback against Donald Cerrone on Saturday.

President Zelensky gives PM Oleksiy Honcharuk "a chance" to stay, despite his reported mockery.

Deborah Dugan is placed on leave following an allegation of misconduct.

Seven African countries are meeting in Togo to tackle the issue of fake drugs.

South Africa pace bowler Kagiso Rabada is banned for the final Test of the series against England following his celebration of Joe Root's dismissal in the third Test.

Social network orders the Spinner to stop targeting its users with "disguised" ads.

A dust cloud sweeps across a New South Wales town, turning it red in seconds.

Andy Burnham calls the rap about the 2017 attack "unnecessarily hurtful and deeply disrespectful".

Watford are a side reborn under Nigel Pearson, but how has he led them from six points adrift to a point above the relegation zone in a month?

Evelyn Yang is one of 31 women suing a gynaecologist over allegations of sexual assault.

Ayanna Pressley says she shared her condition because "as a Black woman, the personal is political".

Saudi Arabia unveils detailed plans for a new race track that is poised to host Formula 1 from 2023.

Everything you need to know about Conor McGregor's return to the octagon against Donald 'Cowboy' Cerrone at UFC 246 in Las Vegas this weekend.