https://www.cnet.com/news/this-1m-xprize-winning-smart-jewelry-could-save-your-life/

When Anu Jain was raising her daughter, she was worried. 

Jain had many concerns about the dangerous world her daughter was heading into, and didn't feel comfortable with her loved one heading into it alone. Violence against women runs rampant across the world, with one-third of women experiencing physical or sexual violence at some point in their lives, according to the World Health Organization.