If you haven't heard about them, you soon will.

如果你還沒聽過，那你很快就會知道了。

Much like the Kardashians, the craze started in LA, and now they're all over the place.

就像卡戴珊姐妹一樣，這股熱潮從洛杉磯開始，現在已經遍佈世界各地。

I'm Zoe Foulkes, and this is According To Science.

我是 Zoe Foulkes，這裡是《根據科學》的節目。

From "Harper's Bazaar" to "Sports Illustrated" and even "National Geographic", infrared saunas are one of the hottest health trends,

從《哈潑時尚》、《運動畫刊》，甚至是《國家地理雜誌》，遠紅外線三溫暖都是最熱門的健康趨勢之一，

and have attracted celebrity fans like Lady Gaga, Selena Gomez, and Chelsea Handler.

並吸引了像女神卡卡、席琳娜·戈梅茲和雀兒喜・韓德勒等的名人粉絲。

Infrared enthusiasts make a lot of health claims about the practice, from detoxification to anti-aging and weight loss.

從排毒到抗衰老和減肥，紅外線的愛好者對這種做法提出很多健康聲明。

So, what are infrared saunas?

所以什麼是遠紅外線三溫暖？

Do they really work?

它們真的有用嗎？

First, the idea of sweating as an act of purification or well-being has been around for thousands of years.

首先，將出汗這個行為，認定成一種淨化或健康的想法已經存在數千年。

From ancient Greece and Rome to the temazcal, also known as "house of heat" in Mesoamerica, to the culture of saunas in Finland, which is where the word sauna comes from.

從古希臘和羅馬、中美洲的 Temazcal「蒸療浴場」，到芬蘭的三溫暖文化，也就是三溫暖這個詞的起源。

With traditional saunas, wood or electricity is used to warm the air in a small room to around 160 to 190 degrees.

在傳統的三溫暖，是使用木材或電力來加熱小房間裡的空氣，以達到約 160 至 190 度。

The intense heat makes you sweat and increases your heart rate, which is thought to have many health benefits, similar to moderate exercise.

極高溫使你流汗並增加心率，這被認為對健康有很多益處，就像適度的運動。

A study of middle-aged Finnish men showed that being in a sauna two to three times a week lowered heart disease risk by 23 percent.

一項關於芬蘭中年男性的研究表示，每週在三溫暖裡待二至三次，能降低 23% 的心臟病風險。

So, you might be wondering, how are infrared saunas different?

所以你可能會好奇，這和遠紅外線三溫暖室有什麼不同？

Well, they use infrared light to heat the body from within rather than heating the external air.

它們利用紅外線波長的光加熱身體內部，而不是加熱外部空氣。

The appeal is that infrared saunas can produce effects similar to traditional saunas but at a lower and much more tolerable temperature of 110 to 120 degrees.

吸引人的地方在於，遠紅外三溫暖可以產生類似傳統三溫暖的效果，但在較低且較容易忍受的溫度，約在110到120度。

The claim is that because the light penetrates the skin more deeply than a traditional sauna, more sweat is produced and, among other health benefits, more toxins are released.

主張是因為光線比傳統三溫暖更能深入皮膚、產生更多汗水，在其他健康益處中，還包括釋放更多毒素。

Experts point out that there is no evidence that infrared saunas actually detoxify your body.

專家指出，沒有證據說遠紅外三溫暖能真正為你的身體排毒。

After all, your body is detoxified by your kidneys and liver, not through sweating.

畢竟你的身體是由腎臟和肝臟排毒，而不是透過流汗。

However, some studies have suggested other benefits, including the treatment of heart arrhythmias, chronic pain, and diabetes.

不過有些研究指出其他好處，包括治療心律失常、慢性疼痛和糖尿病。

So, should you spend your hard-earned money sweating in one?

所以你該花你辛苦賺來的錢在一次流汗上嗎？

Experts say there doesn't seem to be anything wrong with some sauna time, as long as you don't overdo it and stay hydrated.

專家說享受一些三溫暖時間，似乎沒有什麼不妥，只要你不要做得太過火，並保持水分充足。

As one Dutch doctor put it, "Death in a sauna is a rare event."

如一位荷蘭醫生所說：「在三溫暖房中死亡是一件罕見的事。」

And a possible title for one of those dark, Nordic thrillers.

這可能是北歐黑暗驚悚小說的標題。

So, feel free to hop into an infrared sauna, but keep your skepticism on.

儘管去遠紅外線三溫暖房，但要保持你的懷疑態度。

I'm Zoe Foulkes, thanks for listening to According To Science; see you next time!

我是 Zoe Foulkes，感謝您收看《根據科學》，下一次見！