Even if you pass the neck test and are determined to get a workout in, you should take it easy at first.

CNN: Signs you're too sick to work out

The biggest experiment, with 289 patients, used ultrasound on the neck to test whether drinking pomegranate juice reduced hardening of the arteries in heart patients.

FORBES: Magazine Article

Sorensen was forced off at half-time with a neck injury and, after the re-start, Villa immediately looked to test his replacement Steve Simonsen with a series of aerial balls into the box.

BBC: Aston Villa 2-2 Stoke