I’ve lived in Australia for six years and I was surprised that people have a lot of allergies and this is even reflected in some movie scenes in Hollywood movies or am I just assuming wrong?
In: Biology
Environmental changes like air pollution combined with a wider variety of foods being eaten some originating in different continents.
The “hygiene hypothesis” is the most common explanation, where children reared in overly sterile environments never properly develop their immune system. This causes it to have extreme immune reactions to fairly benign phenomena.
Hygiene and sanitary conditions develop weak immune systems. This is what I’ve heard at least
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