Modern agriculture externalizes costs onto health. Food is often a major factor in contemporary ill health, certainly in heart disease and food poisonings, but these costs are not reflected in the cost of the UK's so-called cheap food. Shrinking food supplies will cause further hunger, malnutrition, and starvation, especially in poor countries that are already only marginally self-sufficient with respect to food. Food production in the oceans may be reduced by the effects of ultraviolet-B radiation on phytoplankton and by the warming of the ocean water. Back to Top Reflection Cultural factors may contribute to eating disorders such as anorexia nervosa and bulimia.
Economic factors seem to be at the root of starvation and malnutrition in the developing world.
If occupational activity is low or moderate, take an hours brisk walk or similar exercise daily, and also exercise vigorously for a total of at least one hour in a week. Prefer minimally processed foods. Limit consumption of refined sugar. Alcohol consumption is not recommended. If consumed at all, limit alcoholic drinks to less than two drinks a day for men and one for women.