Multiple sclerosis, known as MS, is a lifelong condition that impacts both the brain and the nerves.
A person suffers when their immune system attacks the myelin - the protective sheath in the body - the covers nerve fibres. This then results in a disruption to the communication between the brain and all other parts of the body.
The nerve fibres affected may then become more vulnerable to damage, and may be completely lost as time goes on. When this occurs, messages can no longer travel and symptoms of MS become permanent. This gradual advancement of issues is known as MS progression, as the disability steadily becomes worse over time.
