He was talking about you I think it means
        
                    
             
        
        
        
I think it is natural selection. genetic variation also could be a factor for physical variation over the years. 
        
             
        
        
        
<span>pressure , heat and erosion
</span>
        
             
        
        
        
Home care providers must maintain records of the duties they perform and the hours they work. They also maintain records of the client's condition and any changes that should be brought to the attention of the client's family or physician.
 
        
             
        
        
        
Lungs with cause a reaction which feels like chocking and it’s worse with bronchial asthma trust me I know from personal experience