Setting aside the notion of determining the number of individual animals on the planet for a moment, merely determining the number of species on the Earth is challenging. Science has only been able to offer estimates thus far, and totals vary greatly.
A. A. A. Multiple sclerosis, or MS, is a long-lasting disease that can affect your brain, spinal cord, and the optic nerves in your eyes. It can cause problems with vision, balance, muscle control, and other basic body functions. The effects are often different for everyone who has the disease.
When the immune system doesnât work right, it can cause diseases in almost any part of the body. It can affect parts we can see, like the skin, and parts we canât see, like the heart and nerves. There are two types of autoimmune diseases: organ-specific and non-organ-specific. Organ-specific diseases slowly destroy a certain type