Mysterious signals to bees. Some flowers attract bees with invisible to us colors and special signs. Wild flower begonia looks white to us, and for the bee â blue-green. Bees distinguish ultra-violet rays, which our eyes do not perceive. They see the pattern on the flower evening primrose, which we are not able to distinguish.
Osteoarthritis. A progressive, degenerative joint disease, the most common form of arthritis, especially in older persons. The disease is thought to result not from the aging process but from biochemical changes and biomechanical stresses affecting articular cartilage.
Arthritis means joint inflammation.. It causes pain and swelling in the body's joints, such as the knees or hips. There are many types of arthritis, but osteoarthritis is the most common.Also known as degenerative joint disease or age-related arthritis, osteoarthritis is more likely to develop as people get older.Osteoarthritis occurs when inflammation and injury to a joint cause a breaking down of cartilage tissue.In turn, that breakdown causes pain, swelling, and deformity. Cartilage is a firm, rubbery material that covers the ends of bones in normal joints.t causes pain and swelling in the body's joints, such as the knees or hips. There are many types of arthritis, but osteoarthritis is the most common.