What this means is that an area like Bangkok has a very different population ratio than other parts of the country. Bangkok is very crowded. When a lot of people are living in a small area this places a burden on the environment and this also affects the society. More people result in more pollution, more people create more garbage,and more traffic. Competition for jobs is greater and the cost of housing is higher. Highly populated areas usually have higher crime rates. Overcrowding is uncomfortable and difficult which for some people is very stressful both emotionally and mentally.