Hello,
You have to know what is causing him
depression &
anxiety & then only he can get a better treatment.
Commonly it occurs due to
stress, anxiety, some developing pathology(disease) / illness in his system, some medications,
substance abuse, addiction to certain drugs.
Get him evaluated by a Counselor or a
Psychiatrist. In the meantime give him home made food, adequate sleep, keep him away from stress.
Regular exercises, outdoor drives, music, reading good books, dancing effectively divert & distract patients from anxiety. Get him a medical check up done so that if there is any illness, it can be treated at the earliest.
Hope I have answered your query. Let me know if I can assist you further.
Take care
Regards,
Dr Nupur K, General & Family Physician