Plus, here’s what happens to your body when you give up meat.              
		              
		              
		              
		              
		              
		              
		              
		              
		
		
    
   
    
        
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| ILLUSTRATION BY ALANAH SARGINSON |  |  |  |  |  | 
            
              
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                      | What you put in your body can have a big impact on what you keep in your head. Fortunately, science shows that healthy eating habits can have a powerful impact on protecting cognitive function and memory as we get older. Here’s a diet developed by researchers that could make your brain younger. |  |  |  |  |  |  | 
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| PHOTOGRAPH BY REBECCA HALE, NAT GEO IMAGE COLLECTION |  |  |  |  |  |  |  |  | 
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| PHOTOGRAPH BY ANDREA FRAZZETTA, NAT GEO IMAGE COLLECTION |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 
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| ILLUSTRATION BY VSEVOLOD ZVIRYK, SCIENCE PHOTO LIBRARY |  |  |  |  |  | 
            
              
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                      | In a new study, scientists identified people based only on their breathing pattern with almost 97 percent accuracy—and soon might be able to analyze yours to diagnose what ails you. |  |  |  |  | 
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