Title: The scientific reasons you can 'sense' when someone is watching you
Headings: 
Because your eyes pick up on more than you know.
Because you can think your way into feeling.
Because gaze is extremely important.
Because you often wrongly assume that you're being looked at …
… but that can actually be a good thing.

Content: When it comes to being stared at, like many other things we feel or know instinctually, our systems are detecting things far beyond our conscious gaze. Consider a 2013 case study of a patient identified as TN: He was cortically blind, meaning that his visual cortex was damaged such that he couldn't "see" in the traditional sense, but his brain still received input from his eyes. In this study, TN was shown pictures of faces, some that appeared to be looking straight at him, others looking off to the side. Though TN could not explain or articulate what he was seeing, activity in his amygdala — the part of the brain that responds to threat and arousal — spiked when he was shown pictures with faces that seemed to be staring at him. What TN's study shows us may explain some of the "sixth sense" feeling we have about being watched: Our brains are doing a lot of work under the surface of our conscious gaze. So if you're walking down the street and you get that feeling, chances are, you may have picked up on other cues outside your direct field of vision. Because you can think your way into feeling. That tingling sensation?