The affects on families are that some people have shell-shock , Post-Traumatic Stress Disorder and radiation effects on families generation like cancer. War can also have a dramatic impact on the health of civilian populations in cities. The hydrogen bombs dropped on the Japanese cities of Hiroshima and Nagasaki had a horrendous immediate impact, killing thousands of people. The smaller bomb 'Little Boy' killed more than 'Fat Man'. The weight diference was by a few tonnes. 'Fat Man' weighed about 10 tonnes and 'Little Boy' weighed 4 tonnes but was a fusion weapon. They also had long-term effects on the population. Radiation Sickness and birth defects of children were problems experienced long after the buildings destroyed by the bombs. Eventually when the radiation levels deceased to a save level buildings were rebuilt.