Complete with GPS, camera, and sensors to detect blood pressure
                                
                                
                                    (Newser) -
                                    Watch out  Google Glass , Sony is delving into wearable technology—and fashion, apparently—with  a patent for a wig  that can check your blood pressure, detect objects around you, and even help blind people navigate roads, the  BBC  reports. Sony thinks its SmartWig, worn "in addition to natural hair,...