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.
Osteoarthritis (OA) is a form of degenerative joint pain caused by wear and tear on your joints. As you age, the cartilage that cushions your joints starts to wear down, causing the bones to rub together. The bone-on-bone action leads to inflammation of the joints. Osteoarthritis most commonly affects the joints in your arms and legs, including your fingers, wrists, knees, ankles, and hips. The lower back is also a common source of OA pain. Let your doctor know if youâre suffering from the early symptoms of osteoarthritis.