You already know the fact that regular exercise is important for controlling weight and     1     (avoid)a variety of health conditions. But it can also improve your academic     2    (perform). And. if you’re a distance learning student, you may miss out on some of the opportunities for physical activity afforded to more traditional students who routinely walk around campus. But it’s well worth the effort     3     (put) the schedule exercise into practice.

The study, which     4    (publish) in the Journal of Medicine & Science, describes physical activity as     5     vigorous movement that produces sweat and heavy breathing. Mike McKenzie found that students who studied over three hours per day were 3. 5 times     6    (likely) to be exercisers. Over a decade ago, McKenzie     7     (say) researchers discovered a link     8     exercise and focus in children.

More recently, another study by Johnson reveals that even short ”microbursts“ of physical activity throughout the day can have positive effects. Jennifer tells that sitting for long periods of time,     9    college students tend to do, can have a negative health effect. In addition, the study found that five-minute bouts of walking every hour had a positive impact on mood, tiredness, and hunger at the end of a day. This may be     10    (particular)beneficial to students who also work a full-time job and study in the evening and nighttime hours.

Recently researchers went through some survey information about the health and habits of men and women in Scotland,     1     (hope) to determine how much exercise is needed to keep the Scots     2    feeling depressed. The answer: a mere 20 minutes a week of any physical exercise, whether sports, walking, gardening     3     even housecleaning. The researchers found that more exercise brought more mental-health benefits. But their overall conclusion was that being active for 20 minutes a week     4    (be) enough, if your goal is mental health.

How much exercise is enough? This is a question difficult to answer,     5     (part) because the amount of exercise needed depends on the benefits you hope to gain. Twenty minutes a week of housecleaning or other     6     (activity) may, according to the Scottish study, increase your satisfaction, but it certainly won’t do much for your physical fitness and is unlikely     7     (reduce) your risks for diseases. It also won’t help much with weight loss.

Interestingly, they did not find that exercise beyond a certain point would bring additional health benefits. According to the report, “It     8       (estimate) that people who are physically active for about seven hours a week have a 40 percent     9     (low) risk of dying early than those     10     are active for less than 30 minutes a week.”

According to some records,Tai Chi dates back as far as 2,500 years.It’s a practice that involves a series of slow gentle physical movements,and    1    (control)breathing.It originated as     2    ancient martial art(武术)in China.Over the years,it    3    (become)more focused on health promotion and restoration. It may be     4     (benefit)in improving balance and preventing falls in older adults and people with Parkinson’s disease. A study    5    (carry) out in 2021 to evaluate a10-week Tai Chi intervention in older adults during the COVID-19 pandemic as a possible way to help improve their mental and physical health. The 30 participants were between the ages of 60 and 78 and hadn’t previously practiced Tai Chi.    6    the results suggested,Tai Chi could possibly help people cope with COVID-19 and the negative effect in the general population during the COVID-19 pandemic.The authors explained that Tai Chi can be practiced    7    (easy) at home or in groups,    8     (make)it useful during pandemic conditions.This    9    (suggest)was not based on studies of Tai Chi during the COVID-19 pandemic but instead    10    past research about the general effects of Tai Chi.The authors said that future research is needed to determine the effectiveness of Tai Chi during the COVID-19 pandemic and to provide more valid and reliable data.

Researchers have found that tai chi could slow down Parkinson’s disease by years. Tai chi, with its slow movements,     1     (know) to benefit physical and mental well-being. The researchers     2     (conduct) a five-year study on people with Parkinson’s. They discovered that the condition became worse     3     a slower speed in those who practiced tai chi. They observed fewer falls, and     4     (little) dizziness (头晕) and back pain in the tai chi practitioners. They also noted that the cognitive function of the test participants who     5     (regular) practiced tai chi became worse more slowly.

Parkinson’s disease is a brain disorder     6     (affect) the nerves and muscles. It steadily causes uncontrollable movements,     7     symptoms (症状) include shaking, stiffness, and difficulty with balance. People with Parkinson’s may have difficulties walking and talking. One of the most famous people with Parkinson’s was Muhammad Ali,     8     heavyweight boxing champion. The researchers suggest that tai chi is one of the most helpful ways     9     (keep) symptoms of Parkinson’s at bay. They said: “The long-term     10     (benefit) effect of tai chi on Parkinson’s could extend the time without disability, leading to a higher quality of life, a lower burden for caregivers and a reduction in drug use.”

After I attended your summer camp about health and lifestyle choices, I realized I hardly ever felt well, either physically     1     mentally. I often felt     2    (sleep) and dizzy, and lacked passion. Most worrying, though, I got the flu easily and experienced many toothaches. At     3     end of the camp, I heard, “Change the world by changing     4    (you).” This stimulated my motivation. A dentist once examined me and told me that too much sugar in my meals     5    (damage) my teeth and health. I made up my mind     6    (change) two things in my life: to eat nothing with sugar and to exercise     7    (regular). After that, I stopped     8    (buy) all the sweets, biscuits, and sugary drinks     9     I used to have every day. Whenever I went out without friends, I brought snacks from home, things that didn’t have any     10    (add) sugar.