研究：唱歌健身功效堪比瑜伽

有控制的深呼吸，心灵与外界和谐统一，这些听起来像是练习瑜伽的基本要领，其实同样适用于唱歌。瑞典哥德堡大学最新的研究发现，一旦同一个合唱团的成员们心跳变得同步，他们的身心就会更加平静，这跟瑜伽的健身效果很相似。该研究的负责人表示，唱歌需要有规律有控制的呼吸，因为唱的时候需要吐气，在乐句的间隙又要吸气，这种呼吸方式跟瑜伽一样，能帮助人放松下来，而且对心脏大有裨益。而且，经常唱歌的人能够更加高效地呼吸。英国卡迪夫大学2017年的一项研究发现，参加过合唱团的癌症患者们呼气能力更强，这有利于他们的治疗和康复。除此之外，还有更多的证据表明唱歌的健身功效，如唱歌能促进体内分泌内啡肽（具有镇痛和调节体温、心血管的作用），澳大利亚纽卡斯尔大学还发现唱歌能够缓解老年人沮丧焦虑的情绪，并且能提升各年龄段人的幸福感。

Deep, controlled breaths and coming into harmony with those around you. It sounds like a description of some of the basic fundamentals of yoga. But it could also be applied to singing. Does comparing the two sound like a stretch? Not to some scientists who say that singing is just as healthy as yoga.

The London Telegraph reports that researchers at Sweden’s University of Gothenburg have found that the heartbeats of choir members begin to synchronise, resulting in a calming effect on the mind and body that has the same health benefits as the ancient practice of yoga.

“Song is a form of regular, controlled breathing, since breathing out occurs on the song phrases and inhaling takes place between these,” Dr. Björn Vickhoff, who led the study, told the paper. “It gives you pretty much the same effect as yoga breathing. It helps you relax, and there are indications that it does provide a heart benefit.”

To get their results, researchers had a group of teenagers perform three singing exercises: chanting, humming and singing a hymm.

Of course, the study could not make a direct comparison of the overall physical benefits of yoga compared with singing. After all, there are a variety of yoga practices, many of which place an equal if not greater focus on physical development as they do on breathing or meditative exercises.

Still, there seems to be an abundance of evidence indicating that singing is healthy, including the simple fact that singing has been shown to release endorphins. Meaning that those who take part in the activity generally tend to feel better, which in and of itself can have a positive impact on overall health.

In addition, studies at Australia’s University of Newcastle have found that singing lowers levels of depression and anxiety in the elderly and improves a general sense of well-being for those of any age.

Those who sing regularly also breathe more efficiently. That sounds fine and good for everyday living. But the Telegraph notes that a 2017 study by Cardiff University found that cancer patients who sang in a choir had a greater expiratory capacity, which benefitted their treatment and recovery.

A 2008 joint study by Harvard and Yale even notes that a Connecticut town had a higher than average life expectancy directly tied to the large number of residents who participated in choir activities.

Still, despite the promising results from the Gothenburg study, Vickhoff isn’t telling people to roll up their yoga mats just yet. "The medical effects need investigating further," he said.