Read the text below and tell me what the problem is and what the solution is.
Consumption of processed and convenience foods and our dependence on the car have led to an increase in obesity and reduction in the fitness level of the adult population. In some countries, especially industrialized ones, the number of obese people can amount to one third of the population. This is significant as obesity and poor fitness lead to a decrease in life expectancy, and it is therefore important for individuals and governments to work together to tackle this issue and improve their citizens' diet and fitness.
Changes by individuals to their diet and their physical activity can increase life expectancy. There is a reliance today on the consumption of processed foods, which have a high fat and sugar content. By preparing their own foods, and consuming more fruit and vegetables, people could ensure that their diets are healthier and more balanced, which could lead to a reduction in obesity levels.
Governments could also implement initiatives to improve their citizens' eating and exercise habits. This could be done through education, for example by adding classes to the curriculum about healthy diet and lifestyles. Governments could also do more to encourage their citizens to walk or cycle instead of taking the car, for instance by building more cycle lanes or increasing vehicle taxes.