And as children age, many pack on the pounds.

儿童的体重也在不断上升。

But what macronutrient do they rely on to pack on the pounds?

你猜他们以什么主要营养来增重呢？

And salmon is a good source of fat for bears looking to pack on the pounds.

鲑鱼是希望增重的熊的良好脂肪来源。

There’s also some evidence that too much stress can trigger hormones that can help to pack on the pounds.

还有一些证据表明， 压力太大会触发有助于增加体重的荷尔蒙。

Experts say the way you design your home could play a role in whether you pack on the pounds or keep them off.

专家说，您设计房屋的方式可能会影响您是增重还是减重。