Tracking your flexibility over time as you train. There are no requirements on how flexible you need to be and there is no correlation of your length of life or muscle strength with how flexible you are.
Hi there!! Cilia are very small fine hairlike projection's/tissues, who's primary responsibilities in the airway is to make sure that it is clear. To be more specific... Cilia line the airways' trachea down. These cilia will do two things; They will trap germs and particulate matter (dust, dander, etc..), before then moving the trapped objects upward to the area where the airway meets the larynx, where you then swallow it... Additionally you can expel it eventually with a cough.
Eating well, exercise, sleep, drinking water, avoiding harmful habits , don’t get sick constantly