IntroductionSince 1800, the world's population has increased from one billion to the current estimated population of 6.5 billion. By 2070, the world's population is expected to continue growing to reach 10 billion people. The most significant population growth has occurred over the past 50 years and, based on United Nations (2007) estimates and projections through 2050, it is estimated that the population explosion experienced worldwide over the last half century will have slowed down in the countries of the North and contemporary countries, while the population will continue to increase in the less developed countries and the countries of the South. While the large population imposes enough taxes on the UK's already fragile economic markets, there is concern that this population is rapidly aging and heavily dependent on the UK welfare state. Through the review and use of print and online sources, demographic trends and their causes are presented, as well as the impact and implications for the British welfare state.1- Demographic trendsIn Britain and in the rest of Europe, the population is expected to decrease (Annex A) with two notable trends focused on the increase in the number of older people, as well as the decrease in the number of young people and people of working age.1.1- The aging populationAccording to a BBC report (2011), the number of individuals over sixty could increase by 40% in the next thirty years. The Office for National Statistics (2009) recorded that between 1984 and 2009 there was a 1 percent increase in the number of older people, which equates to approximately 1.7 million. The largest increase seems to appear in the 85 and over category. Since 1983, the number of people in this category has doubled...... middle of paper ...... greater economic deficit due to low fertility and mortality rates. Although several goals can be implemented, such as increasing worker productivity and growth, any possible improvements will still require heavier taxation and reduced public spending and will depend on the rapidly failing health of the population. in general. Possible solutions to this important problem include delaying the retirement age, increasing working hours, allowing increased migration and privatizing health services. However, each of these ideas will likely face strong resistance. If young people and the working population do not save more for their retirement and prepare for the future, the economic consequences of population aging will be worse than those of the financial crises of 2007-2008 and, perhaps, even of the Great Depression..