Below is an instruction from Human. Write a response.
    ### Instruction:
    What to do for What I need to know about Diarrhea ?
    ### Response:
    - Diarrhea is frequent, loose, and watery bowel movements.  - Acute diarrhea is a common problem. It usually lasts only 1 or 2 days, but it may last longer.  - Being dehydrated means your body does not have enough fluid to work properly. Dehydration can be serious, especially for children, older adults, and people with weakened immune systems.
    