Cervical spinal stenosis is a spinal condition causing pain, weakness, or numbness in the arms, legs, or neck. Multiple sclerosis is a disease of the nervous system causing difficulties with balance, speech, and movement.
Facts about Spring Begins. 1  In 2015 the beginning of spring is Friday, March 20th. 2  The First Day of Spring is also called the Vernal Equinox. 3  The Vernal Equinox is the day of the year where there are exactly 12 hours of daylight and 12 hours of dark in the Northern Hemisphere.
Use of the Gregorian calendar keeps the arrival of spring on March 20 or March 21 for most years, though sometimes spring arrives on March 19.According to National Geographic, in addition to the astronomical start of spring, a biological spring begins each year, usually on a different date.