Trisomy 21 , trisomy 18 , and trisomy 13 are examples of this kind of genetic problem. Trisomy 18 affects 1 out of every 7,500 births. Kids with this syndrome possess a low birth fat and a small head, mouth, and jaw. Their hands typically form clenched fists with fingertips that overlap. They also may have malformations relating to the hips and feet, heart and kidney problems, and intellectual disability . Only about 5 percent of these children are expected to live much longer than 1 year. Trisomy 13 affects 1 out of every 15,000 to 25,000 births. Children with this condition have got cleft lip and palate often, extra toes or fingers, foot abnormalities, and many different structural abnormalities of the face and skull.Michigan State University researchers tested 75 college students during a two-day period and found those who were less match had a harder period retaining information. ‘The findings show that lower-fit people lose more storage across period,’ said Kimberly Fenn, study co-author and assistant professor of psychology. The study, which appears in the research journal Cognitive on the web, Affective & Behavioral Neuroscience, is among the first to research young, supposedly healthy adults. Previous study on fitness and memory space has focused generally on children, whose brains remain developing, and the elderly, whose recollections are declining.