Their main purpose is to restore water and electrolytes that are lost during heavy exercise and sweating.

主要目的是补充在剧烈运动和出汗过程中流失的水分和电解质。

The researchers also found that people who did heavier exercises had a slightly higher rate of skin cancer.

研究人员还发现，运动量越大，患皮肤癌的几率就越高。

Sweat coats the surface of your body during heavy exercise, cooling you down as it evaporates.

剧烈运动时，汗水会覆盖在您的身体表面，在蒸发时为您降温。

Makino says heavy exercise—which causes a boost in CO2—might even alter the body's bicarbonate enough to trigger a measurable effect on the eye.

玛克诺表示使得二氧化碳增加的剧烈运动会也许甚至会转化身体里更多的重碳酸盐从而引发对眼睛可测量的影响。

With very active dogs, we need to combine these with heavier exercise and activity, this translates to more physical activity for us and therefore a healthier heart.

对于非常活跃的狗，我们需要将它们与较重的运动和活动结合起来，这对我们来说意味着更多的身体活动，因此心脏也更健康。

A clattering of clogs upon the pavement; a rapid ringing of bells; and all the melancholy mad elephants, polished and oiled up for the day's monotony, were at their heavy exercise again.

木鞋在人行道上发出咔嗒声；急促的铃声；所有忧郁的疯象，为了一天的单调而擦亮和上油，又开始了他们的剧烈运动。