Doing at least two and a half hours of vigorous exercise each week cuts the chance of developing flu, new data suggests.
Around 4,800 people took part in this year’s online Flu Survey, run by the London School of Hygiene and Tropical Medicine.
Moderate exercise did not appear to have a protective effect, the researchers said.
One of the questions people must answer when they register, as well as their age, if they are around children and if they have been vaccinated, is how many hours of “vigorous exercise” they do each week, such as running, fast cycling or competitive sports, ranging from none to more than five hours.
They are then asked to log in each week and note how they are feeling, and whether or not they have any flu-like symptoms.
The researchers say their findings suggest 100 cases of flu per 1,000 people could be prevented just by engaging in vigorous exercise.
1. vigorous adj.
強有力的 (qiang2 you3 li4 de5)
例: There has been vigorous opposition to the proposals for a new road.
2. vaccinate v.
接種疫苗 (jie1 zhong3 yi4 miao2)
例: The children were vaccinated against major childhood diseases.
3. range v.
（在範圍內）變動 ((zai4 fan4 wei2 nei4) bian4 dong4)
例: Prices range from US$50 to US$250.