The Samaritans have launched a new app that allows you to detect via Twitter whether your friends and contacts are in a state of mental anguish and need to get help.
The Samaritans Radar app works by accessing your Twitter account, and timeline, and will alert you via email when it spots anything that The Samaritans dubs as a warning sign of mental anguish.
The charity claims there is a correlation between messages with certain keywords and suicide, so words such as "depressed" and phrases such as "no one to talk to" are flagged as potentially suicidal messages.
However, there are questions around the efficacy of the app as it can't distinguish between a real friend and whether or not it's a brand or and acquaintance on the social networking site.
The Samaritans claim that they launched the new initiative because they believe that "Social media channels like Twitter are used by people to talk about how they feel when they’re struggling to cope".
"Samaritans Radar will flag potentially worrying tweets that you may have missed, giving you the option to reach out to those who may need your support."
It will also send you helpful suggestions on how you can reach out to the person you're concerned about.
You can sign up here.