The development of new drugs is a long and difficult process. Overall, it may take 10-15 years for a new compound to get from the test tube to the medicine cabinet. Find out about the different stages involved in making a new medicine.

Vitamin B12 is a water-soluble vitamin that plays an important role in the production of your red blood cells. It also helps in maintaining the normal functioning of your brain and nervous system. It’s found in several foods including meat, fish, eggs, dairy products and some fortified breakfast cereals.

In the general population in the UK, about 1 in 600* people has multiple sclerosis (MS) with genes and environmental factors both playing a role. Read more about the risk of developing MS in this A-Z entry.

Multiple sclerosis is a lifelong condition which affects the central nervous system (the brain and spinal cord). In secondary progressive MS (SPMS), symptoms gradually worsen and accumulate over time, known as progression.

Core stability muscles, or postural muscles, are the deep muscles in your abdomen, pelvis and back. They act to hold you together and help you maintain a good posture.

Want to find out more about what happens after you’ve been diagnosed with multiple sclerosis (MS)? It all depends on how active your MS is, what treatments are available and what you'd prefer to happen.

Some people with multiple sclerosis experience bladder accidents (urinary incontinence), where bladder control is lost and urine leaks out. Treatment options can include pelvic floor exercises, medication, lifestyle changes and using a catheter.

Am I having a relapse? What are the early symptoms of multiple sclerosis? Find out about the signs and symptoms of MS, how MS is diagnosed, what's causing your symptoms and how to manage relapses.

An MS lesion is an area of damage or scarring in the brain or spinal cord. Lesions are caused by inflammation that results from the immune system attacking the myelin sheath around the nerves in your central nervous system.