text: **5.1 Changes from industrial to service sectors**
  In the last three decades,**sectoral employment**has changed in line with the continuous global trend 
  from**agriculture and industry**to**service sectors**. This ‘megatrend’ started more than 250 years ago, 
  relocating workforce from agriculture to industry, and continued in the 20th century, employing far fewer 
  workers in industry and more in service occupations. These megatrends drastically changed the working 
  and living conditions — connected with a strong reduction of the population in the countryside and the 
  growth of cities. 
  
  At first glance there is clear evidence about the impact of this change on OSH: it means less heavy and 
  dangerous work in agriculture and industry, more office-like work, and more human–human interaction 
  (specifically in education, social work, health and care) instead of human–material or human–machine 
  interaction. It has to be noted that even human–human interaction is more and more partly or fully 
  supported by digital communication tools, replacing paper and face-to-face communication. 
  
  The**three-sector categorisation**(agriculture, industry, service) is mostly used to describe economic 
  and societal changes at a very aggregated level. It has its**limitations**and can even lead to false 
  presumptions if it is used to**describe working conditions**. Particularly ‘service’ sector is a too broad a 
  term to draw conclusions on working conditions, that is, the simplified assumption that work in the 
  service sector is nearly always office work. Work in the ‘Service sector’ includes transport and delivery, 
  care and health work, education and social work, domestic work, cleaning work, maintenance and repair, 
  retail, and of course a very large share of administrative office work, practically in all economic activities. 