How to decrease wear level of battery

[iMore Question]

Hello l have a iPhone 5s recently I downloaded a app called battery life and it told me that my battery wear level is 16% i am worried what i can do to change or minimize that present and is this app data acurate ?

 

[phreddyl]

enjoy your phone and don't worry about it-

 

[nikkisharif]

enjoy your phone and don't worry about it-

^THIS