Brain cells die quickly if their oxygen supply is cut off, and many people contend that orgasms are highly intensified when the body is cut off from oxygen. Given these facts, lack of oxygen can intensify orgasims but a side effect can be among the following options:
- a tree falling
 - forest is destroyed
 - dehydration
 - smoking tobacco
 - Leptospirosis
 - negative
 - brain cells die
 - massive damage


 

       brain cells die  