Answer: The medical centers on board provide care for acute illnesses and injuries that may occur while on vacation and are not intended to provide long-term care for guests with chronic illnesses such as dementia. People with dementia may experience a sudden worsening of symptoms due to the new and unfamiliar environment and time zone changes. If assistance with activities of daily living and safety is needed, it is essential that the guest travels with caregivers who can assist with these functions on board.