You can now easily shop in multiple currencies, view your order total (including shipping fees, customs tariffs and taxes) at checkout and be assured the total is guaranteed at the exchange rate set when order is placed, with no additional payment required upon delivery of your order.ou can now easily shop in multiple currencies, view your order total (including shipping fees, customs tariffs and taxes) at checkout and be assured the total is guaranteed at the exchange rate set when order is placed, with no additional payment required upon delivery of your order.
Muscle weakness, or myasthenia, is a decrease in strength in one or more muscles. It is a common symptom of muscular, neurological and metabolic disorders. Muscular diseases, such as muscular dystrophy and dermatomyositis (disorder characterized by muscle inflammation), are common causes of muscle weakness.
The causes are many and can be divided into conditions that have either true or perceived muscle weakness. True muscle weakness is a primary symptom of a variety of skeletal muscle diseases, including muscular dystrophy and inflammatory myopathy. It occurs in neuromuscular junction disorders, such as myasthenia gravis. Muscle weakness can also be caused by low levels of potassium and other electrolytes within muscle cells.