Businessman, 77, with advanced motor neurone disease takes his own life by ...

History 

The NHS describes motor neurone disease (MND) as: 'An uncommon condition that affects the brain and nerves. It causes weakness that gets worse over time.'

The weakness is caused by the deterioration of motor neurons, upper motor neurons that travel from the brain down the spinal cord, and lower motor neurons that spread out to the face, throat and limbs. 

It was first discovered in 1865 by a French neurologist, Jean-Martin Charcot, hence why MND is sometimes known as Charcot's disease. 

In the UK, Amyotrophic Lateral Sclerosis (ALS) is referred to as Motor Neurone Disease, while in the US, ALS is referred to as a specific subset of MND, which is defined as a group of neurological disorders.

However, according to Oxford University Hospitals: 'Nearly 90 per cent of patients with MND have the mixed ALS form of the disease, so that the terms MND and ALS are commonly used to mean the same thing.' 

Symptoms

Weakness in the ankle or leg, which may manifest itself with trips or difficulty ascending stairs, and a weakness in the ability to grip things.

Slurred speech is an early symptom and may later worsen to include difficulty swallowing food.

Muscle cramps or twitches are also a symptom, as is weight loss due to leg and arm muscles growing thinner over time.  

Diagnosis

MND is difficult to diagnose in its early stages because several conditions may cause similar

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