A、Blood diseases. B、Heart attacks. C、Colds or flu. D、Pneumonia. C

Weather has a powerful effect on the physical world. It also affects people’s personalities. How do we know about the effects of weather on people? We know from biometeorologists. These scientists are weather researchers. They study human health and emotions in response to atmospheric conditions. The weather conditions of the atmosphere greatly influence people’s health, thinking, and feelings.
   All over the world winds come down from high mountain areas. The winds fall faster and faster, and the air becomes warmer and drier. What do scientists say about the health effects of this kind of weather? According to biometeorologists in Russia, powerful winds from the mountains increase the number of strokes. Also, sometimes strong southern winds blow north over Italy. During those times, researchers say, Italians have more heart attacks. People everywhere have bad headaches during time of forceful winds.  And Japanese weather scientists say there is an increase in the number of asthma attack.
   Do other kinds of weather influence physical health? Sudden temperature changes in winter are often associated with colds or flu.  However, colds and flu probably increase because people are in close contact indoors in cold weather. Colds and flu may even lead to pneumonia. Other illnesses also increase during long periods of cold weather. In most places, diseases of the blood and heart attacks are more common in winter. But in some very hot and humid regions, there are more heart attacks in summer.
23.Which sentence is not true about biometeorologists?
24.According to biometeorologists in Russia, what effect do powerful winds bring about?
25.What are often associated with sudden temperature changes in winter?
26.Which sentence is NOT true about the effects of weather on people?