Ans: C) GABA 
The loss of memory is induced by an abnormally high production of gamma- aminobutyric acid (GABA), an inhibitory neurotransmitter. GABA plays a role in the communication in the brain, specifically the hippocampus and neocortex, which are associated with spatial memory.
        
                    
             
        
        
        
An individual's self-esteem can be affected by genetics as well as environmental factors, and poor self-esteem often begins in childhood. A person who experiences an abusive childhood or who didn't get enough approval from authority figures, feels his or her self-worth was based on achievements or feels excluded will often have poor self-esteem.
 
        
             
        
        
        
Blood is pumped through blood vessels all over our bodies because it carries the nutrients, mineral, and oxygen that every cell in our bodies need. It also carries out the metabolic waste away from its cell of origin. 
Blood vessel is a tube-like structure in our body like vein, artery, and capillary. It carries blood through the tissues and organs within the body. 
        
                    
             
        
        
        
Answer:
Physically inactive people can lose as much as 3% to 5% of their muscle mass each decade after age 30.
Explanation:
Hopes this helps ?
 
        
             
        
        
        
A warm soft place to sleep and a quiet environment. Maybe certain music can be a factor too.