可可電臺，每期節目一話題，讓英語磨練耳朵的同時學到更多有益的小知識，豐富知識的同時受益于生活。

Laughter are healthier and happier.

愛笑的人更健康快樂。

They have improved respiratory health.

改善呼吸健康

Laughter flushes the lungs with fresh air and helps you breathe more deeply. People who love to laugh inadvertently stretch their lungs, increase their heart rate and reinvigorate their entire body when laughing. This is equal to a splash of cool, fresh, rejuvenating water for the respiratory system.

笑有利于肺部吸入新鮮的氧氣，有利于我們進行深呼吸。當愛笑的人在笑的時候，他們的肺部擴張，心率增加，全身恢復精力。這就相當于給我們的呼吸系統來了一瓶干凈酷爽的回春水。

They have lower chances of heart disease.

遠離心臟病

A study conducted at The University of Maryland found that there is a link between laughter and cardiovascular health. Laughter causes the tissue that composes the lining of blood vessels to expand, allowing for better blood flow. In other words, people who love to laugh improve the function of their blood vessels and increase blood flow. This helps protect their heart from diseases.

馬里蘭大學的一項研究發現笑和心血管健康之間存在著聯系。笑會導致血管內壁組織擴大，有利于血液充分流動。換句話說，愛笑的人可以改善血管的功能，增加血流量。這有助于他們遠離心臟病。

【知識點講解】

be equal to 等于，勝任； 當；

例句：

In many respects Asian women see themselves as equal to their men.

在很多方面，亞洲女性都認為自己和丈夫是平等的。

Any number to the power of nought is equal to one.

任何數的0次方等于1。

Investors can borrow an amount equal to the property's purchase price.

投資者可以獲得與房產購買價格相等的借款額。

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