Increased over time for most people
But new ways of living brought new problems: poor housing, overcrowded, no space
Poor diet (because of low wages)
Poor hygiene (no infrastructure, no regulations)
Poor health (cholera, typhoid, tuberculosis, influenza)
Poor air (garbage, sewage, but also because no air circulation)
Poor water quality (sewage, garbage, etc)
Poor Medicine
Lower life expectancy than in countryside