A learning disability is a general term that describes specific kinds of learning problems that cause a person to have difficulty acquiring certain skills. The skills most often affected are reading, writing, math, listening, speaking, and reasoning.
Osteopenia usually has no symptoms. There is no pain or any other sign to signal that the bone is becoming thinner, although there may be incidences of frequent fractures as the bones tend to become fragile and soft.
Osteopenia is defined as low bone density caused by bone loss. Osteopenia is often a precursor to osteoporosis, a common condition of brittle bones that can result in fracture. The two medical terms are sometimes confused and it's important to know the difference and how each is related to arthritis.