1 . Scientists are now digging into precisely why exercise holds so many benefits for our mental health and memory. The answer, studies say, lies in our brain chemistry.
Each time you work up a sweat, your body releases feel-good happy hormones (荷尔蒙), including endorphins, dopamine and endocannabinoids, the latter being responsible for the so-called runner’s high. Now researchers are also pointing to myokines (肌肉因子) as an important contributor to the mental health benefits of exercise. When our muscles contract, myokines are released into the bloodstream, helping your muscles and organs communicate. They think this communication increases resilience to stress, reduces symptoms of mental suffering and anxiety and has a direct effect on depression.
A 2021 scientific report published in Neuropharmacology showed evidence that myokines boost brain function, like improving memory and mood. “Myokines reduce systemic inflammation (炎症), which is especially beneficial for people with drug-resistant depression whose low mood is linked to high inflammation,” explains Dr Jennifer Heisz, an expert in brain health and associate professor in the department of kinesiology at McMaster University in Canada.
A recent study published in the British Journal of Sports Medicine showed that treatment for depression can be much more effective when physical activity is added to the usual care. Participants found benefits after 12 weeks of exercising for 30 to 60 minutes a day. “While exercise is not a replacement for professional mental health treatment, physical activity can complement and enhance the effects of the treatment,” says lead researcher Ben Singh, a research fellow at the University of South Australia.
“It is amazing to consider how moving our bodies can heal our minds,” says Heisz. Whether you’re cycling, walking around your neighbourhood or doing yoga, getting sweaty is good for your body and mind. To get the biggest overall health boost, the key is to zero in on sports and activities you enjoy, so you’ll keep going back to them.
1. How do myokines boost our mental health?A.By bonding muscles with organs. |
B.By slowing down our bloodstream. |
C.By contracting muscles through the body. |
D.By releasing happy hormones in our brain. |
A.Doubtful. | B.Negative. |
C.Uncertain | D.Approving. |
A.Adapt to. | B.Give up. |
C.Focus on. | D.Put off. |
A.By making comparisons. |
B.By presenting research findings. |
C.By offering suggestions. |
D.By conducting some experiments. |
2 . Tai chi, a traditional, slow-moving form of Chinese physical exercise, is known to increase flexibility and improve balance. New research has been conducted to determine whether tai chi has an influence on lowering blood pressure in people with prehypertension (高血压前期).
In the study, Chinese scientists put 342 adults with prehypertension into two groups. The average age of people taking part in the study was 49. About half the participants (参与者) took part in aerobic exercise, including jogging, climbing stairs and cycling. The other half was trained to practice tai chi. Both groups got hour-long exercises four times a week.
Nearly 22% of the people who practiced tai chi saw their blood pressure fall to be normal, compared with nearly 16% of people in the aerobic exercise group. And fewer patients in the tai chi group went on to develop high blood pressure than patients in the aerobic exercise group.
So what is it about tai chi that helps lower blood pressure? “The practice tends to get more of a response from the parasympathetic (副交感的) nervous system, which is the network of nerves that relaxes your body after periods of stress or danger,” says Ruth Taylor-Piliae, a professor at the University of Arizona’s College of Nursing.
“I think the beauty of tai chi is that you don’t have to have a special gym membership, you don’t have to have special clothing,” Taylor-Piliae says. “Once you learn tai chi, you can do it anytime and anyplace. And it does provide a calming and relaxing effect.”
Evidence suggests it can also help protect against cognitive fall and even improve memory. But you have to practice it continually to get the most benefit.
1. What is the function of paragraph 1?A.To offer some examples. | B.To explain a definition. |
C.To introduce the topic. | D.To give people suggestions. |
A.They were divided into two groups. | B.They suffered from heart disease. |
C.They were 49 years old. | D.They got exercises five times a week. |
A.It can make people calm down. |
B.It requires training and specialized equipment. |
C.It has no influence on the parasympathetic nervous system. |
D.It is suitable for individuals with aerobic exercise experience. |
A.A Traditional Sport | B.The Benefits of Aerobic Exercise |
C.Exploring Chinese Physical Exercise | D.Managing Blood Pressure with Tai Chi |
1.比赛的时间和地点;
2.比赛的经历;
3.你的感受。
注意:
1.写作词数应为80左右;
2.请按如下格式在答题卡的相应位置作答。
Cyber Security Knowledge Competition
____________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________________My dad is an enthusiastic (狂热的) runner who
One day, I was late for a bus, tried to run after it and in under a minute was out of breath! This made me realize how unfit I was.
A friend of
5 . As China’s first ever full-time Formula One (世界一级方程式锦标赛) driver, Zhou Guanyu makes a living by doing the sort of things many people can only dream about: traveling the world and racing in a fast car.
“I think the only
Zhou has been putting his all into
It was back in Shanghai in 2004 that-at just 5 years old-Zhou
There was a
Zhou is often
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A.guessing | B.controlling | C.proving | D.declaring |
A.reading | B.playing | C.driving | D.swimming |
A.growing up | B.getting up | C.going up | D.staying up |
A.simple | B.interesting | C.available | D.popular |
A.watched | B.followed | C.researched | D.examined |
A.lose | B.stress | C.develop | D.measure |
A.stayed | B.dealt | C.fought | D.taken |
A.way | B.lack | C.role | D.loss |
A.received | B.imagined | C.composed | D.created |
A.reached | B.chose | C.left | D.forgot |
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A.matched | B.compared | C.adapted | D.devoted |
A.career | B.hobby | C.influence | D.result |
A.normally | B.naturally | C.regularly | D.definitely |
6 . Yoga has a well-deserved reputation for helping improve balance and flexibility and for inducing calm and relaxation. But as for weight loss, many people assume other types of exercise will benefit more. While you might not burn as many calories by practicing yoga as you would by running or doing some other high-intensity activities, yoga can still raise your heart rate and help build muscle.
● Reduce stress and reduce pounds. Yoga helps deal with stress.
● Move well and eat well.
●
Yoga is a very reasonable form of exercise, but you have to choose the right type. A 2021 study found no difference in weight loss totals for participants practicing a gentle, restorative yoga versus a more vigorous type of yoga.
A.Make weight loss last. |
B.Learn about cognitive skills. |
C.Studies show that high levels of cortisol can lead to an increase in fat. |
D.Several studies have confirmed that doing yoga does raise cortisol levels. |
E.Yoga helps break old dietary habits and related unconscious patterns of behavior. |
F.Actually, the best yoga is the practice that fits for you — the one you'll commit to. |
G.Here’s more about how yoga is a complete body and mind workout. |
It has been reported that
The closing ceremony was held at the Chengdu Open Air Music Park. It is the first time in the world that the closing ceremony of a large international sporting event
China
Pillow fighting is moving out of the bedroom and into the boxing ring. The Pillow Fight Championship, or PFC, plans to hold
Steve Williams had the idea of
The male and female athletes in January’s event come
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9 . Reasons to Put on Your Rollerblades and Hit the Pavement
Rollerblading (旱冰) is great for building balance, strengthening muscles, and improving mental health. It’s also a cheap, fun, and eco-friendly way to get your daily exercise in.
It’s fun
We all know that we should be exercising several times a week, and picking a workout that is fun naturally motivates us to get up and get going.
It’s cheap
Rollerblading is also a great exercise choice because it costs very little.
It’s eco-friendly
Skater and climate activist, Gerhard Ladstatte explains why he started Friday Night Skating, a free street skating event. “We want to move without burning fuel.” People looking for an oil-free way to get to a workplace that isn’t too far from home, while combining daily exercise into their routine, can consider rollerblading to work.
It’s good for your mental health
Like any form of aerobic exercise, skating is associated with a number of wellness benefits.
A.In other words, rollerblading has it all. |
B.Exercise and fresh air can reduce stress. |
C.Not only is skating cheap, it also benefits nature. |
D.All you need is a pair of skates and some safety equipment. |
E.Rollerblading is an exciting way to get in fresh air and exercise. |
F.It’s easy to see why so many people are discovering the joys of skating. |
G.Unlike a bicycle, you don’t need to find a place to store your skates while you work. |
What makes something a sport? Traditional definitions usually included some physical
The word e-sports is short for electronic sports. It is a form of competition in
The first e-sports event was the one