Environmental Variables And Their Links To The Incidence Of Disease

Question 1

SADS

Answer 1

Type of depressional that has a seasonal weather pattern. The episodes of depression seem to happen at the same time each year usually during the winter, and have been linked to reduced exposure to sunlight

Question 2

Hay fever and asthma

Answer 2

The body reacts to pollen and other substances in the air during the spring and the summer

Question 3

Climate and infectious dideases

Answer 3

Prolonged periods of heavy rainfall increase opportunities for vector-borne diseases to speead

Longer periods of mild temperatures increase the transmission potential of vector-borne diseases. Vectors become more infectiouz more quickly in warmer temperatures

Vector- borne viruses take too long to replicate if temperatures are too cold but if it is top hot, the lifespan of the vectors is decreased
Air-borne respiratory diseases such as the flu thrive in temperate winters when temperatures are lower but not too cold and there are damper conditions

Question 4

Topography drainage and health

Answer 4

In low income countries of Asia high densities of people occupy the flood p
Ains of major rivers (for example the ganges). They are attracted by the flat land and seasonal flooding which lead them grow rice

However excessive rain is bad, in 2018 unplanned flooding affected the greatest number of people of all environmental hazards and was responsible for 24% of all deaths fro, natural didssterd