Click Here to Read: They monitor hearts, count calories … but are health apps any good for you? by Dominic Rushe in The Guardian on April 19, 2015.
Click Here to Read: Fitness trackers are popular among insurers and employers – but is your data safe? by Sarah Shemkus in the Guardian on April 17, 2015.
Smart watches can upload our vital signs to phones and the internet. Photograph: Guido Mieth/Getty Images