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Rates of asthma rates in 2017 [1] As of 2011, approximately 235 million people worldwide were affected by asthma, [2] and roughly 250,000 people die per year from asthma-related causes. [3] Low and middle income countries make up more than 80% of the mortality. [4] Prevalences vary between countries from 1% to 18%. [3]
The World Health Organization indicates people worldwide are taking up less active recreational pursuits, while research from Finland [130] found an increase and research from the United States found leisure-time physical activity has not changed significantly. [131] Physical activity in children may not be a significant contributor. [132]
Obesity has been observed throughout human history. Many early depictions of the human form in art and sculpture appear obese. [2] However, it was not until the 20th century that obesity became common — so much so that, in 1997, the World Health Organization (WHO) formally recognized obesity as a global epidemic [3] and estimated that the worldwide prevalence of obesity has nearly tripled ...
In the developed world, about 20% of people are affected by allergic rhinitis, [15] food allergy affects 10% of adults and 8% of children, [16] and about 20% have or have had atopic dermatitis at some point in time. [17] Depending on the country, about 1–18% of people have asthma. [18] [19] Anaphylaxis occurs in between 0.05–2% of people. [20]
In males, mean percentage body fat ranged from 23% at age 16–19 years to 31% at age 60–79 years. In females, mean percentage body fat ranged from 32% at age 8–11 years to 42% at age 60–79 years. But it is important to recognise that women need at least 9% more body fat than men to live a normal healthy life. [2]
[51] [52] Conversely, studies suggest that oily fish consumption is negatively associated with total body fat and abdominal fat distribution even when body mass remains constant. [53] [54] Similarly, increased soy protein consumption is correlated with lower amounts of abdominal fat in postmenopausal women even when calorie consumption is ...
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According to the World Health Organization, asthma affects 235 million people worldwide. [2] There are two major categories of asthma: allergic and non-allergic. The focus of this article will be allergic asthma. In both cases, bronchoconstriction is prominent. [1]