Answer:
The correct answer is - acute stress disorder.  
Explanation:
Acute stress disorder is a disorder that occurs due to exposure to an extremely traumatic situation such as death threats or serious accidents. It is characterized by developing dissociation and severe anxiety with sleeplessness, fear and other symptoms however it ends within month.
Acute stress is one of common anxiety disorder and occurs due to the traumatic past.
Thus, the correct answer is - acute stress disorder.
 
        
             
        
        
        
<em>Five benefits of physical activity: </em>
1. It strengthens the body. - Physical 
2. It prevents illness. - Physical and Emotional 
3. It improves brain function. - Mental 
4. It increases energy level. - Mental and Physical 
5. It makes you feel happier. - Emotional and Social 
Physical exercise is beneficial to all aspects of human existence whether physically, mentally, emotionally, socially, or spiritually. Once you are physically healthy, the rest follows. Everything is interconnected. 
        
             
        
        
        
The term yardstick refers to what is a normal response.  It really has nothing to do with a yardstick and can be used in many situations.  A yardstick is a measurement that has been tested over and over and than that measurement becomes the standard.
Say the yardstick for a reaction time is 5 seconds
Meaning that is what a normal healthy person can do it in.
Joan has the reaction in 4.8 second.  Well she is on the the bell curve and did better than the yardstick test measure.