A new report from the Children's Society's found an estimated 283,000 girls aged 10-15 say they're unhappy with their lives in general.
In addition 700,000 10-15 year-old girls across the UK also do not like their personal appearance, according to their findings.
Conversely, the proportion of boys aged 10-15 who are unhappy with their lives has remained stable at one in nine, while the proportion of boys who say they are unhappy with their appearance continues to hover around 20%.
The figures:
1 in 7 girls aged 10-15 aren't happy with their lives overall
The number who don't feel happy overall has increased 21% over the past 5 years
1 in 3 girls aged 10-15 aren't happy with their appearance
Emotional bullying such as name-calling is twice as common as physical bullying
About half of all children aged 10 to 15 were bullied at school in the past month
Speaking on Premier's News Hour Rachael Newham, from the Christian mental health charity Think Twice, said: "The Biblical stories we have didn't exist in a vacuum and people like Elijah and David... went through real stuff. They grappled with God, they grieved, they were under pressure - but they brought it to God.
"I still don't think we've got, as a church, how to teach young people - and teach anyone actually - to bring everything that they are and everything that they feel to God, without feeling guilty.
"Emotions are natural, they're God-given, and that includes the whole range of them."
Jemimah Woodbridge, a Christian Youth worker, told Premier that social media and smart phones have contributed towards this.
She said: "Young people are comparing themselves to girls they know, in their schools, in their classes, in their churches day in day out on social media.
"So it's actually like a staged version of their life so when girls are sat in the backstage version of their home, when no one else can see them, they're comparing that to someone else's stage version of themselves."
"As a church we need to be telling young people where their real, true identity comes from, that they have a place in the family of God and that they have been made with purpose, that their identity is based in more than what the world can offer them."
Listen to Premier's Antony Bushfield speaking to Rachael Newham on the News Hour:
Listen to Premier's Hannah Tooley speak to Jemimah Woodbridge:
