Placeholder Image

字幕列表 影片播放

  • At some point between the 1st and 5th century CE,

  • the Hindu sage Patañjali began to codify the ancient, meditative traditions

  • practiced throughout India.

  • He recorded techniques nearly as old as Indian civilization itself

  • in 196 manuals called the Yoga Sutras.

  • These texts defined yoga as the 'yoking' or restraining of the mind

  • from focusing on external objects

  • in efforts to reach a state of pure consciousness.

  • Over time, yoga came to incorporate physical elements

  • from gymnastics and wrestling.

  • Today, there are a multitude of approaches to modern yoga

  • though most still maintain the three core elements of Patañjali's practice:

  • physical postures, breathing exercises, and spiritual contemplation.

  • This blend of physical and mental exercise

  • is widely believed to have a unique set of health advantages.

  • Such as improving strength and flexibility,

  • boosting heart and lung function, and enhancing psychological well-being.

  • But what have contemporary studies shown regarding the benefits

  • of this ancient tradition?

  • Despite attempts by many researchers,

  • it's tough to make specific claims about yoga's advantages.

  • Its unique combination of activities makes it difficult to determine

  • which component is producing a specific health benefit.

  • Additionally, yoga studies are often made up of small sample sizes

  • that lack diversity,

  • and the heavy reliance on self-reporting makes results subjective.

  • However, there are some health benefits

  • that have more robust scientific support than others.

  • Let's start with flexibility and strength.

  • Twisting your body into yoga's physical postures

  • stretches multiple muscle groups.

  • In the short term, stretching can change the water content of these muscles,

  • ligaments, and tendons to make them more elastic.

  • Over time, regular stretching stimulates stem cells

  • which then differentiate into new muscle tissue

  • and other cells that generate elastic collagen.

  • Frequent stretching also reduces the body's natural reflex

  • to constrict muscles,

  • improving your pain tolerance for feats of flexibility.

  • Researchers haven't found that any one form of yoga

  • improves flexibility more than another,

  • so the impact of specific postures is unclear.

  • But like other low-impact exercises,

  • yoga reliably improves fitness and flexibility in healthy populations.

  • The practice has also been shown to be a potentially powerful therapeutic tool.

  • In studies involving patients with a variety of musculo-skeletal disorders,

  • yoga was more helpful at reducing pain and improving mobility

  • than other forms of low-impact exercise.

  • Adding yoga to an existing exercise routine can improve strength

  • and flexibility for hard to treat conditions like chronic lower back pain,

  • rheumatoid arthritis, and osteoporosis.

  • Yoga's mix of physical exercise and regimented breathing

  • has proven similarly therapeutic for lung health.

  • Lung diseases like chronic bronchitis, emphysema, and asthma

  • shrink the passageways that carry oxygen,

  • while weakening the membrane that brings oxygen into the blood.

  • But breathing exercises like those found in yoga

  • relax the muscles constricting those passageways

  • and improve oxygen diffusion.

  • Increasing the blood's oxygen content is especially helpful

  • for those with weak heart muscles

  • who have difficulty pumping enough oxygen throughout the body.

  • And for those with healthy hearts,

  • this practice can lower blood pressure and reduce risk factors

  • for cardiovascular disease.

  • Yoga's most widely celebrated benefit may be the most difficult to prove:

  • its psychological effects.

  • Despite the longstanding association between yoga and psychological wellbeing,

  • there's little conclusive evidence on how the practice affects mental health.

  • One of the biggest claims

  • is that yoga improves symptoms of depression and anxiety disorders.

  • Since diagnosis of these conditions varies widely

  • as do their origin and severity, it's difficult to quantify yoga's impact.

  • However, there is evidence to suggest

  • that yoga can help reduce the symptoms of stress,

  • as well as meditation or relaxation.

  • Research on the effects of yoga is still evolving.

  • In the future, we'll need larger studies, incorporating diverse participants,

  • which can measure yoga's impact on heart attacks, cancer rates,

  • cognitive function and more.

  • But for now, yoga can continue its ancient tradition

  • as a way to exercise, reflect, and relax.

At some point between the 1st and 5th century CE,

字幕與單字

影片操作 你可以在這邊進行「影片」的調整,以及「字幕」的顯示

B2 中高級

瑜伽對你的身體和大腦有什麼影響--克里希納-蘇迪爾。 (What yoga does to your body and brain - Krishna Sudhir)

  • 53 1
    林宜悉 發佈於 2021 年 01 月 14 日
影片單字