Leaning over reading smart phones linked to neck problems.
Surg Technol Int. 2014 Nov;25:277-9.
Assessment of stresses in the cervical spine caused by posture and position of the head.
Hansraj KK
http://www.ncbi.nlm.nih.gov/pubmed/25393825
carrying 50 lb. sack flour around one’s neck is very likely to cause problems…
Comments – just looking down without bending the neck seems like a good option