Ihlobo yinkathi ephezulu yokusetshenziswa kukagesi, futhi ukushintshashintsha noma ugesi ophansi kungabangela ama-chiller acuphe ama-alamu okushisa okuphezulu, okuthinta ukusebenza kwawo kokupholisa. Nayi eminye imihlahlandlela enemininingwane yokuxazulula ngempumelelo indaba yama-alamu ahlala ebanda kakhulu kuma-colds ngesikhathi sokushisa okukhulu kwehlobo.