According to the World Wildlife Fund, if deforestation, or the clearing of trees, continues as it has been, 55 percent of the Amazon rain forest could be gone by 2030.Following are examples of Amazon rain forest animals that have already been affected by deforestation.(Mario Tama/Getty Images News/Getty Images).ccording to the World Wildlife Fund, if deforestation, or the clearing of trees, continues as it has been, 55 percent of the Amazon rain forest could be gone by 2030.
Iron deficiency may cause hair loss. Chronic or excessive bleeding. Long-term (chronic) bleeding is the most common cause of iron loss that leads to iron deficiency. Other conditions or events that result in large amounts of blood loss may also lower iron levels to the point where anemia develops.
When iron stores are exhausted, the condition is called iron depletion. Further decreases may be called iron-deficient erythropoiesis and still further decreases produce iron deficiency anemia. Blood loss is the most common cause of iron deficiency. In men and postmenopausal women, iron deficiency is almost always the result of gastrointestinal blood loss.