This article was researched using 13 sources. See our methodology and corrections policy. A lion cub has been advertised historically for about $1,500 to $15,000+ in private and exotic-animal markets, ...

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An IgE blood test measures antibodies to help diagnose allergies. High levels of IgE antibodies can mean you have an allergy to something. Your healthcare provide may do additional testing to ...

If your body is flexible, you’re likely to live longer than someone whose body and joints are tight and rigid, according to the first, large-scale study of the links between flexibility and mortality.