Generate an explanation for the given claim using the provided supporting material from the paragraph. Please consider the following points while generating an output. 1) The claim will always have supporting proof in the paragraph, and the paragraph will have a clear point of view supporting the claim. 2) There can be instances where direct correlation to the claim is not available. Make use of the sentences in the paragraph to provide a corresponding output supporting the claim. 3) The explanation should be at least one and at most twelve sentences long.

Ex Input:
Paragraph: HIIT can blast calories, build muscle and boost endurance with impressive efficiency in just 20 minutes a day, but the catch is finding the right level of intensity outside the comfort zone, fitness trainers say. Sean Bartram, author of the book “High Intensity Interval Training for Women,” said to find that level people should think about what it is like being chased by a rabid dog. “It’s just below that,” he said. “To gain maximum benefits you have to push your body to a place that’s almost uncomfortable.”   The American College of Sports Medicine predicts HIIT will be a top fitness trend in 2015. Bartram said people are drawn to it for its efficiency and almost endless variety of exercises. The bursts can be sprinting or spot jumps and the recovery can be rests or slower paced movements, he explained. “You could alternate 30 seconds of sprinting with 30 seconds of walking, or you could engage in a series of bodyweight exercises, such as push-ups, doing each for 30 seconds with 10 seconds of rest in between,” he said. Dr. Michele Olson, a professor of exercise science at Auburn University at Montgomery, Alabama, said it’s not high intensity unless the heart rate is elevated to near 90-plus percentage of its maximum. “Many people think they are engaging in HIIT but they are really doing traditional interval training, where the heart rate is around 75 to 85 percent of max,” she said. Maximum heart rate is about 220 minus age, according to the American Heart Association. Olson said that if done properly, HIIT can increase the effectiveness in losing abdominal fat and prompt favorable changes in cholesterol and insulin levels. “There is research showing that you can cut your exercise time nearly in half,” she said. About 20 minutes of HIIT can reap similar benefits of doing 35 to 40 minutes of moderate, steady-state cardio, she added, noting the training level must be intense. Hayley Zawadzki, personal training manager at New York Health and Racquet Club fitness centers, suggests that anyone starting HIIT should have a fitness analysis. “If you have a history of high blood pressure or medications, you cannot push to the absolute max,” she said. Claim: Key to High Intensity Interval Training found outside comfort zone.

Ex Output:
With High Intensity Interval Training (HIIT), which consists of short bursts of intensive activity followed by short periods of  recovery, fitness experts say the harder the push, the greater the reward.


Ex Input:
Paragraph: An early barrage of illness in the South has begun to spread more broadly, and there’s a decent chance flu season could peak much earlier than normal, health officials say. The last flu season to rev up this early was in 2003-2004 — a bad one. Some experts think the early start may mean a lot of suffering is in store, but others say it’s too early to tell. “It really depends on what viruses are circulating. There’s not a predictable trend as far as if it’s early it’s going to be more severe, or later, less severe,” said Scott Epperson, who tracks flu-like illnesses for the U.S. Centers for Disease Control and Prevention. There are different types of flu viruses, and the one causing illnesses in most parts of the country is a surprise. It’s a version that normally doesn’t abound until March or April. That virus generally isn’t as dangerous to older people — good news, since most flu hospitalizations and deaths each winter occur in the elderly. However, such viruses can be hard on children and people younger than 50. Louisiana was the first state to really get hit hard, with doctors there saying they began seeing large numbers of flu-like illnesses in October. Children’s Hospital New Orleans has already seen more flu cases this fall than it saw all of last winter, said Dr. Toni Gross, the hospital’s chief of emergency medicine. Last month was the busiest ever at the hospital’s emergency department. Officials had to set up a triage system and add extra shifts, Gross said. “It is definitely causing symptoms that will put you in bed for a week,” including fever, vomiting and diarrhea. But the hospital has not had any deaths and is not seeing many serious complications, she said. Health officials tend to consider a flu season to be officially underway when — for at least three weeks in a row — a significant percentage of U.S. doctor’s office visits are due to flu-like illnesses. That’s now happened, CDC officials said this week. The agency on Friday estimated that there have already been 1.7 million flu illnesses, 16,000 hospitalizations, and 900 flu-related deaths nationally. The most intense patient traffic had been occurring in a six states stretching from Texas to Georgia. But in new numbers released Friday, CDC officials said the number of states with intense activity rose last week to 12. Flu is widespread in 16 states, though not necessarily at intense levels in each, the CDC said. Last flu season started off as a mild one but turned out to be the longest in 10 years. It ended with around 49,000 flu-related deaths and 590,000 hospitalizations, according to preliminary estimates. It was bad, but not as bad as the one before it, when flu caused an estimated 61,000 deaths and 810,000 hospitalizations. Those 2017-2018 estimates are new: The CDC last month revised them down from previous estimates as more data — including actual death certificates — came in. In both of the previous two flu seasons, the flu vaccine performed poorly against the nasty predominant virus. It’s too early to say how well the vaccine is performing right now, Epperson said. Epperson said there’s a chance the flu season will peak this month, which would be unusually early. Flu season usually doesn’t hit fever pitch until around February. The early start suggests a lot Americans may be sick at the same time, said Dave Osthus, a statistician who does flu forecasting at Los Alamos National Laboratory. “This could be a precursor to something pretty bad. But we don’t know,” he said. Gross is pessimistic. “I, personally, am preparing for the worst,” she said. ___ The Associated Press Health and Science Department receives support from the Howard Hughes Medical Institute’s Department of Science Education. The AP is solely responsible for all content. Claim: US flu season arrives early, driven by an unexpected virus.

Ex Output:
The U.S. winter flu season is off to its earliest start in more than 15 years.


Ex Input:
Paragraph: On Thursday, Italy overtook China as the country to register most deaths from the highly contagious respiratory disease. The total number of cases in Italy rose to 47,021 from a previous 41,035, a rise of 14.6%, the Civil Protection Agency said. In its most complete analysis of the outbreak yet published, the national health institute (ISS) said the average age of those who died was 78.5 years, with the youngest victim aged 31 and the oldest 103. The median age was 80. Some 41% of all those who died were aged between 80-89, with the 70-79 age group accounting for a further 35%. Italy has the oldest population in the world after Japan, with some 23% of people aged over age 65. Medical experts say these demographics could explain why the death toll here is so much higher than anywhere else in the world. The ISS report, based on a survey of 3,200 of the dead, said men accounted for 70.6% of the deaths and women 29.4%. The median age for the women who died was 82 against 79 for men. By comparison, the median age of those who tested positive for the illness was 63. A deeper analysis of 481 of the deceased showed that almost 99% of them were suffering from one or more medical condition before catching the virus. Some 48.6% had three or more previous pathologies. A total 73.8% had had high blood pressure, 34% had diabetes and 30.1% had heart disease. On being admitted to hospital, 76% had a fever, 73% had breathing difficulties, 40% had a cough and 8% had diarrhea. The median time between the onset of the first symptoms and subsequent death was eight days, with the median time spent in hospital just four days. Of the 3,200 deaths reviewed in the survey, only nine were aged less than 40, all but one of them men. Claim: Italy's coronavirus deaths surge by 627 in a day, elderly at high risk.

Ex Output:

The death toll from an outbreak of coronavirus in Italy has leapt by 627 to 4,032, officials said on Friday, an increase of 18.4% - by far the largest daily rise in absolute terms since the contagion emerged a month ago.