Answer:
The human brain is the most complex organ in the body.The brain regulates your body's basic functions, enables you to interpret and respond to everything you experience, and shapes your behavior. 
Explanation:
Drugs interfere with the way neurons send, receive, and process signals via neurotransmitters. Some drugs, such as marijuana and heroin, can activate neurons because their chemical structure mimics that of a natural neurotransmitter in the body. This allows the drugs to attach onto and activate the neurons. Although these drugs mimic the brain’s own chemicals, they don’t activate neurons in the same way as a natural neurotransmitter, and they lead to abnormal messages being sent through the network.
 hope it helps you
 
        
                    
             
        
        
        
When did you first notice your child acting different.? How long has this beem going on? What is the las thing thwy ate or drank. Do they have any illnesses that you know of and if so are they on medication now for it. how much do you dose your child for their.condition.
        
             
        
        
        
I believe it is carbohydrates
        
                    
             
        
        
        
Saliva, blood, having Intercourse with some with HIV