A new research suggests that smoking may shorten the lives of those with terminal illness, such as ALS (amyotrophic lateral sclerosis).
ALS damages nerve cells in the brain and spinal cord. These cells control many vital muscle functions, including speaking, swallowing and breathing.
Though no cure for this disease has been found, scientists have identified several risk factors, including genes, gender, age and underlying health issues.
For this study, researchers explored the link between tobacco and development of ALS.