Cortisol is produced and secreted by the adrenal glands. Production of the hormone is regulated by the hypothalamus in the brain and by the pituitary gland, a tiny organ located below the brain.
Cruise lines that operate private islands: Celebrity Cruises, Costa Cruises, Disney Cruise Line, Holland America Line, Princess Cruises and Royal Caribbean International. Disney Cruise Line calls at its private island, Castaway Cay, on itineraries from Port Canaveral.
Cruise line private islands offer uncomplicated beach days for cruisers. Though you're on land, the experience is an extension of the onboard one; it's more of a private, white-washed resort than a regular island visit where you can experience local culture.