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 next 12 vertebrae make up the thoracic spine, running through the middle of the back and forming the back of the rib cage. Itâs the least flexible part of the spine. Commonly the rib joint with the thoracic spine becomes stressed and can cause acute pain between the spine and shoulder blade. Other problems of this area would be hyperkyphosis, or humpback, and muscles tension. The thoracic spine can be associated with asthma and even some digestive problems.