Warming up prevents injuries by loosening your joints, and improving blood flow to your muscles — making your muscles less likely to rip, tear, or twist in a harmful way during your workout. Stretching also helps prepare your muscles for the physical activities you're about to perform. 
uwu
        
                    
             
        
        
        
Answer:
This is due to light from above heuristic.
Explanation:
In light from above heuristic, they we perceive spheres and indention are altered. Our eyes are so much used to of sunlight, that we assume that the light is coming from above and creating a presumption that light on the bottom creates an indention. 
This is why Jimmy perceived bumps originally when he looked the picture of the side of the submarine but later when he turned the picture upside down, what he originally perceived as bumps, now look like dents, 
 
        
             
        
        
        
Answer:
world health organization
Explanation:
it means the world health services
 
        
                    
             
        
        
        
All of the above are correct