A carnet can be issued and delivered to an applicant within 1 day, if the application is complete and approved by 4 p.m. Central time. Same day service is available for an additional charge. Obtaining a carnet takes 4, simple steps: 1  Gather information listed on the application checklist.2  Register for an online account. U.S. or foreign customs official always has the right to limit the validity period on a carnet upon inspection although to do so is highly unusual. The carnet can be used multiple times and in multiple countries during the period of validity.
1 Guillain-BarrÃ© syndrome, a rare nerve disorder that causes weakness in the legs, arms, and other muscles and that can progress to complete paralysis.  Myasthenia gravis, a rare, chronic disorder that causes weakness and rapid muscle fatigue.
Muscle atrophy can also happen if you are bedridden or unable to move certain body parts due to a medical condition. Astronauts, for example, can also experience some muscle atrophy after a few days of weightlessness. Other causes for muscle atrophy include: 1  lack of physical activity for an extended period of time. 2  aging.  alcohol-associated myopathy, a pain and weakness in muscles due to excessive drinking over long periods of time.