Phần 2
...(8)…studying mice have found an interesting genetic connection. After separating ...(9)…into two groups - those that chose to run on their wheel more often, and those that decided not to run as much - the difference was ...(10)…in their offspring. After 10 generations, the running mice would run on their wheels 75% more often than the other group, and by 16 ...(11)…they were running 7 miles a day as opposed to the average 4 miles. It seemed their ...(12)…for physical activity was genetic. We all inherit genes from our parents that play a key ...(13)…in the development of our brains, and these genes can make some people literally crave activity.
In fact, the brains of the running mice had larger dopamine systems and regions that ...(14)…with motivation and reward. They needed activity, otherwise their ...(15)…would react similar to drug addicted rodents when deprived of cocaine or nicotine. They were genetically addicted to ...(16)… We also inherit genes responsible for our other traits - from impulsivity, to procrastination to work ethic and straight up laziness.
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Từ mới:
crave: ao ước, khao khát
rodents: loài gặm nhấm
impulsivity: tính bốc đồng
procrastination: sự chần chừ
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