一项研究发现，肌肉减少和腹部体脂堆积与流体智力下降有关。
One study found that muscle loss and the accumulation of body fat around the abdomen are associated with a decline in fluid intelligence.
另一些人认为压力会导致一个人的智力下降，从而危及他的健康。
Others argue that stress contributes to one's mental decline and hence endangers his health.
使用微波食物导致记忆力、注意力降低，情绪不稳定，智力下降。
Eating microwaved food causes loss of memory, concentration, emotional instability, and a decrease of intelligence.
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