In a brain with phones placed to both sides of the head but turned off (right), activity was normal.
如果在头部两侧放置已关机的手机(右图)，大脑的活动将维持正常状态。
In addition to using "hands-free" devices, which keep mobile phones away from the head and body during phone calls, exposure is also reduced by limiting the number and length of calls.
除使用“免提”装置在通话时将移动电话与头部和身体保持一定距离以外，限制通话次数和时间，也会减少接触量。
Ms. Gallagher also recommends earplugs or noise cancelling head-phones to avoid paying attention to distracting sounds, such as other people’s voices in neighboring cubicles.
加拉赫还建议使用耳塞或是消除噪音耳机，以避免被其他声音分心，例如隔壁房间的说话声。
The phones wrap around the back of the head and rest just in front of the ears.
戴这种耳机时，需将它环绕在后脑勺，靠在耳朵前方。
The phones wrap around the back of the head and rest just in front of the ears.
戴这种耳机时，需将它环绕在后脑勺，靠在耳朵前方。
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