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。

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.

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“如果年轻孩子，特别是学期儿童开始突然的增加他们面对移动设备屏幕的时间，我们将会保持重点关注。” 他说到。

“We would be quite concerned if young children, especially preschoolers, began to dramatically increase their mobile screen time,” he said.

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即便是有了当前的同步技术，也很难保持我的 Palm Pilot、桌面 PC以及移动电话之间的联系和时间表的同步。

Even with current synchronization technology, it's hard to keep contacts and schedules synchronized across my Palm Pilot, desktop PC, laptop, and mobile phone.

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