Twitter files IPO paperwork

Twitter has made public its S1 filing, the document filed with the Securities and Exchange Commission which contains the financial details and user metrics of its business. It has 215 million monthly active users, as compared to Facebook’s more than one

Overcome Your Fears While You Sleep

Nightmares aren’t the only things that can haunt your slumber. Researchers can now trigger fears while you’re sleeping—in order to help you overcome them. Neurologist Jay Gottfried, who authored the study, told the Washington Post