Serpent (symbolism) The serpent, or snake, is one of the oldest and most widespread mythological symbols. The word is derived from Latin serpens, a crawling animal or snake. Snakes have been associated with some of the oldest rituals known to humankind and represent dual expression of good and evil.
1 Osteoporosis, a condition characterized by reduced bone mineral density and increased bone fragility.  Rickets, a childhood disease characterized by impeded growth and deformity of the long bones. The earliest sign of subclinical vitamin D deficiency is craniotabes, abnormal softening or thinning of the skull.
Vitamin D deficiency doesnât always cause symptoms. When it does, some of the symptoms may include: difficulty thinking clearly; bone pain; frequent bone fractures; muscle weakness; soft bones that may result in deformities ; unexplained fatigue; Many people don't develop symptoms until their vitamin D levels get very low or have been low for some time. This can make the condition difficult to diagnose. Several factors have contributed to the rising incidence of vitamin D deficiency. These include: wearing sunscreen (sunscreen blocks the sunâs ability to stimulate vitamin D production)