1 Tracheoesophageal fistula: An abnormal channel forms to connect the trachea and the esophagus. 2  Passage of swallowed food from the esophagus into the trachea causes serious lung problems. 3  Tracheal foreign body: An object is inhaled (aspirated) and lodges in the trachea or one of its branches.
The cycle of hair growth in eyebrows is completely different and shorter compared to the cycle of hair growth in head. Usually for head hair, it will take around 5-6 months to regrow but in case of eyebrows it is only a matter of 2-3 months.
Olive oil is also good for your eyebrows. Being rich in vitamin E, olive oil can help your eyebrow hair grow faster and thicker. It will also help keep it dark-hued. 1  Massage your eyebrows with warm olive oil for 5 minutes before going to bed. 2  Leave it on overnight, then rinse it off with warm water the next morning.