"Even though the number has declined over the past 40 years, coronary heart disease remains the leading cause of death in the United States, responsible for of all deaths."

"Even though the number has declined over the past 40 years, coronary heart disease remains the leading cause of death in the United States, responsible for 25% of all deaths."

Explanation:

According to the CDC report, coronary heart diseases (CHD) are still the main reason for deaths in the United States. Almost one in every four deaths is due to CHD and once every 37 seconds according to the CDC data. The percentage varies between individuals based on their ethnic or racial group patterns.  

Sedentary lifestyle and lack of physical exercise; mental stressors; overweight or obesity; unhealthy diet with poor nutrition; diseases like heart diseases, diabetes, and other metabolic disorders; addiction to smoking and alcohol are all the main reasons for this disease being highly prevalent still.

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and after water is usually warmed by the sun the water temperature raises and then evaporates .