The correlation between job stress, burnout, and cognitive performance in Iranian firefighters: A cross-sectional study.

Background: Appropriate cognitive performance is vital for a firefighter, but many occupational factors can negatively affect it.

Objective: This study assessed the correlation between job stress, burnout, and cognitive performance in firefighters.

Methods: This descriptive-correlational study was conducted in three fire stations in Iran in 2023 with 61 participants, including 34 firefighters in the exposed group and 27 office workers in the control group.

The combined effects of noise and vibration stress on sex hormone levels, fertility capacity, and the protective role of cinnamon extract in rats: an experimental study.

Due to the high prevalence of noise and vibration exposure in most industries, this study aimed to investigate the effects of simultaneous exposure to noise and vibration on sex hormone levels and fertility capacity in rats, as well as the protective effects of the hydroalcoholic extract of cinnamon. In this experimental study, 64 adult male rats were randomly divided into 8 groups, control, noise (N), cinnamon (C), noise + cinnamon (NC), vibration (V), vibration + cinnamon (VC), noise + vibration (NV) and groups Noise + Vibration + Cinnamon (NVC). Groups C, NC, VC and NVC received a 75 mg/kg dose of cinnamon extract by gavage.

The effects of occupational exposure to manganese fume on neurobehavioral and neurocognitive functions: An analytical cross-sectional study among welders.

This study aimed to measure concentrations of manganese fume in breathing zone (BZ) and blood among welders to assess neurocognitive and neurobehavioral functions among them. In this study 38 welders and 27 administrative employees participated. Q16 questionnaire was used to evaluate neurobehavioral symptoms.

Respiratory Exposure to Toxic Gases and Metal Fumes Produced by Welding Processes and Pulmonary Function Tests.

Background: Welding is a common industrial process and is harmful to welders' health.

Objective: To determine the effect of toxic gases and metal fumes produced during 3 welding processes on welders' incidence of respiratory symptoms and pulmonary function.

Methods: This cross-sectional study was conducted in an Iranian shipbuilding industrial factory in 2018.