UVC is absorbed by the ozone layer and has the highest energy UV rays which make them the most harmful to your eyes. Scientists have shown that many forms of eye cancers might be caused by lifelong exposure to the sun and its harmful radiation.
Thoracic strain/sprain. What is a strain/sprain of the thoracic region? The thoracic region describes the vertebrae in the middle of the spine and is often referred to as the mid back. Technically speaking it runs from the base of the neck to just below the rib cage. A strain is when a muscle is overstretched or overloaded to the point where the muscle fiber fails or tears. A sprain is when a ligament is overstretched or overloaded to the point where the ligament fails or tears. Strains and sprains are common in the thoracic region of the spine.
The symptoms of a true herniated disc may not include back pain at all! The symptoms of a herniated disc come from pressure on, and irritation of, the nerves. In the thoracic spine area, this can include total paralysis of the legs. The symptoms of a herniated disc in the thoracic area usually include: 1  Pain that travels around the body and into one or both legs. 2  Numbness or tingling in areas of one or both legs. 3  Muscle weakness in certain muscles of one or both legs. 4  Increased reflexes in one or both legs that can cause spasticity in the legs.