Show chewing gum cum at aids we A aviators chewing gum is recommended tor pilots of tho the royal air force in the hying flying training manual published publish id in england as it pro provides vides saliva and helps overcome tho the difficulty experienced perien ced in swallowing during descents as a result of parched throats says saya popular mechanics magazine swallowing aids in equalizing tho the air pressure within the ears when descending from a high altitude as it opens the narrow passages leading from the back of the throat to tho the inner side bide of the eardrum in sudden downward flights authorities recommend clicking the ears P which moans means pinching the nostrils and forcing air from the chest into the nose until a clicking sound is heard in both cars care L |