関連ワード:  is it healthier to live by the sea    is it healthy to live by the sea    is it good to live by the sea    is it better to live by the sea    is it healthier to live by the ocean    is it healthy to live by the ocean    is it healthy to live by the beach    is it healthy to live near the sea    is it good to live by the beach    is it healthier to live at sea level