Forestry is one of the most hazardous occupations, due in part to the biological, chemical, ergonomic, physical, and psychosocial aspects of the job. Here, we review health risks in forestry occupations, including those in professional and technical forestry, logging, and forestry support, from the standpoint of biological (e.g., insects/arachnids, plants), chemical (e.g., diesel exhaust), ergonomic (e.g., awkward postures, fo...