What triggers ALS to start? What are 3 things that can lead to ALS?

The exact triggers for the onset of ALS (Amyotrophic Lateral Sclerosis) are not fully understood. The exact cause of ALS is unknown, but about 10% of cases are inherited, while the rest are sporadic.

Research suggests a complex interplay of genetic and environmental factors involved in the occurrence of ALS. It might include exposure to certain metals or chemicals, traumatic injuries, viral infections, or intense exertion.

Some weakly associated risk factors include family history and environmental exposures. There is no cure for ALS and the average life expectancy after diagnosis is 2 to 4 years.

However, some people live longer with the help of treatments and supportive care. The diagnosis of ALS is based on the signs and symptoms of upper and lower motor neuron degeneration, as well as tests to rule out other conditions.

The risk of developing ALS increases with age and is higher for men than women. ALS can affect any part of the body, but it often starts in the hands, feet, arms, or legs.