Answer:
Stimulating the brain can enable the benefits of 
Explanation:
 
        
             
        
        
        
Insulin is released into the blood when oxygen levels are low and blood glucose levels are high 
        
             
        
        
        
hi <3
changes in the enzyme's shape would decrease its ability to function as this would change the active site of the enzyme, meaning it is harder for it to carry out its job. 
this is why we try to keep enzymes in their optimum environmental conditions so they can function their best
hope this helps :)