Hello,
Slurred or slow speech (
Dysarthria) can occur due to extreme stress &
dehydration,
anxiety, too much alcoholic drink.
Your friend should get properly hydrated, sodium, potassium depletion in the electrolyte system of the body can cause slurring of speech due to developing weakness of the facial, tongue or throat muscles. It can result in
facial paralysis.
Other causes can be stroke or MS, Multiple
sclerosis or some developing tumor. Sometimes, it can be due to interaction or side effects of some medications (antidepressants, narcotics or sedatives).
Help him stay away from addictions if any. Get him physically examined by a GP. He may have to go through some blood works and Imaging tests.
His treatment will depend upon the pathology detected.
Hope I have answered your query. Let me know if I can assist you further.
Regards,
Dr. Nupur K, General & Family Physician