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.
Rating Newest Oldest. Best Answer: A doctor has a degree from medical school (4 years, either an MD or a DO) and has gone through residency (anywhere from 3 to 10 additional years of training). They are licensed to practice medicine or surgery (or both) independently, write prescriptions, etc.
Nurse Practitioner Vs. Master's Degree in Nursing. Nurse practitioner programs are often part of a master's degree program and prepare graduates to perform advanced levels of medical care. Those who earn a Master of Science in Nursing may focus on areas involving nursing administration, education and informatics.