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.
Early LBD symptoms are often confused with similar symptoms found in other brain diseases like Alzheimerâs. Also, LBD can occur alone or along with Alzheimerâs or Parkinsonâs disease. There are two types of LBD â dementia with Lewy bodies and Parkinsonâs disease dementia. The earliest signs of these two diseases differ but reflect the same biological changes in the brain.