Beriberi

Main reason of this nutritional disorder is the deficiency of "Vitamin B1" also known as "Thiamine". Its two types have been identified, one is "Dry beriberi", in which long nerves of limbs are damaged, resulting in muscular atrophy, decreased muscle function, paralysis, vomiting and mental confusion. Other type is "Wet beriberi" in which cardiac failure occurs resulting in edema, rapid heart rate, shortness of breath and swollen limbs. This dangerous disease is most common in Western countries because of its major causes i.e. "Alcoholism" and usage of "Polished rice". Person becomes extremely weak in this disease, that's why name beriberi (which means, very weak) is referred to this disease.