Heat Stress Recognition and Prevention – Cal/OSHA

  • 4 topics | 30m
  • Up to 30 languages
  • Transcripts
Each year, more people in the United States die from extreme heat than from hurricanes, lightning, tornados, floods, and earthquakes combined. This course will discuss the effects of heat on your body, outline the risk factors for heat-related illnesses, and describe the associated treatments for each. This training will also explain several control measure techniques and safe work practices that you can use to prevent heat-related stresses. The content in this course is designed to comply with the intent of the applicable regulatory requirements. Learner objectives are to describe how your body handles heat and what personal factors may lead to heat stress; identify the signs, symptoms, and first aid treatments of heat-related illnesses; and recall preventive measures that you can take to minimize heat stress. This course was developed with subject matter support provided by EnSafe Inc., a global professional services company focusing on engineering, environment, health and safety, and information technology. Please note, the course materials and content were current with the laws and regulations at the time of the last expert review, however, they may not reflect the most current legal developments. Nothing herein, or in the course materials, shall be construed as professional advice as to any particular situation with respect to compliance with legal statutes or requirements.


  • identify how the body handles heat
  • identify personal factors that may lead to heat stress
  • define the signs and symptoms of heat-related illnesses
  • identify first aid treatments for heat-related illnesses
  • identify preventive measures to minimize heat stress
  • identify employer responsibilities in relation to heat illness prevention


  • Risk Factors
  • Heat-related Illnesses
  • Preventing Heat Illness
  • Employer Responsibilities