How moobs are teaching women about breast cancer
A video showing how to do a breast cancer check using man boobs has been watched nearly 7 million times.
A breast cancer support group made the video to get around restrictions on showing women's nipples on some social media sites.
Video journalist: Alvaro A Ricciardelli
Journalist: Anne-Marie Tomchak
For more videos subscribe to BBC Trending's YouTube channel. Or find us on Facebook.
BBC Trending blog
Meet my transgender kid
'Migrant worker' hip-hop in Saudi Arabia 
Bypassing Putin?
Somalia's Instagram star
Christian mercy for Islamic State
Endless monotony on Facebook
How Vietnamese rap got political
'Inspirational' Down's syndrome singer
Is it fair to 'shame' online?
What not to say in an obituary
Preacher v Selfies
BBC Trending radio