Evaluation of occupational noise exposure and general health of workers in industrial sites: A case study.

Background: Occupational noise exposure in workplaces is the most common detrimental factor that has the greatest impact on the health of people working there.

Objective: The aim of this study was to evaluate occupational noise exposure and its relation to the general health status in industrial workers in Sanandaj, Iran.

Methods: This cross-sectional study was conducted on the general health of 500 male workers in Sanandaj using the General Health Questionnaire (GHQ-28).

Investigation of the relationship between carrying school bags (handbags and backpacks) and the prevalence of musculoskeletal pains among 12-15 year old students in Shiraz.

Inappropriate school bags put students at risk of musculoskeletal problems and early fatigue. Heavy bags can change the body posture and the musculoskeletal system must react appropriately in order to compensate for this stress. It is recommended that the weight of a school bag must not be more than 10% of the student's body weight and the weight must be placed on both shoulders.