Parkinson's disease. Parkinson's disease (PD) is a chronic, progressive neurological disorder for which at present there is no known cure. The core symptoms are tremor, rigidity (stiffness), bradykinesia (slowness of movement) and postural instability (balance difficulties).eurodegenerative diseases are defined as hereditary and sporadic conditions which are characterized by progressive nervous system dysfunction. These disorders are often associated with atrophy of the affected central or peripheral structures of the nervous system.
To keep the carpet clean and fresh, parents should clean high-traffic carpet areas every six to 12 months and professionally clean the entire carpet once annually. Pet owners typically require carpet cleaning more often, due to dogs tracking in dirt and grass, pets shedding, and any urine or accidents your pet may have on the carpet.
In the average household of about 2-4 residents, carpet lifespan is usually about 3-5 years. It is by this point that most carpet fibers become old and frayed. Stains will also have sunk in, turning what started out as a pure white carpet into something graying and dull.here are several factors that can effect how long your carpet lasts, whether it's where you live, who you live with, or what you do in your home. But even carpet under the most trying of conditions can last many years, with the right carpet maintenance.