It turns out that about 50 percent of what we do day-in, day-out is done with little or no conscious thought. Some companies have succeeded in turning this behavior into habit. Every time we are unsure about something, we Google it. When we feel sad, we check our Facebook account. When we want to capture a moment in time, we use Instagram. What do all those companies that succeeded to create a habit out of using their products have in common? And why social networks use newsfeeds? Watch the video to find out.