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.

Paragraph: The three have been speaking out this week as part of a high-profile “Heads Together” campaign, which aims to break stigmas around mental health issues and encourage people to speak openly about their emotions. In a six-minute film recorded at Kensington Palace in central London on Wednesday, the trio discussed the stress of becoming new parents, dealing with trauma at work, and the death of the princes’ mother, Princess Diana, in a Paris car crash in 1997. “When you have children, it really does put your own emotions and your own life into perspective and it has been very, very interesting understanding why I get so upset about some things, why some things effect me,” William said in the clip released by his office on Friday. “I thought I was fairly straight down the line, but I feel quite a lot more than I used to.”  William, Queen Elizabeth’s grandson and second in line to the throne, said he had taken home some of the cases he had encountered when working as an air ambulance helicopter pilot. He and Kate also spoke of the pressure of parenthood following the birth of son George in 2013. “... You have no idea what you’re doing no matter how many books you read - nothing can prepare you for it,” Kate said. The first few weeks after they returned to their former home in Wales, she said, “were a steep learning curve, massively”. Earlier this week, William talked about how the shock of losing his mother still lingered 20 years after her death. Harry said he had sought counseling to help deal with the grief. William warned the British virtue of the stiff upper lip could damage mental health - a departure from the royal family’s traditional stoic attitude amid crises ranging from the 1936 abdication of King Edward VIII to the death of Princess Diana. “We have been brought closer because of the circumstances. You are uniquely bonded because of what we’ve been through. But even Harry and I over the years have not talked enough about our mother,” William said. Harry added: “Never enough”. “I always thought to myself, ‘what’s the point in bringing up the past?’,” Harry said. “What’s the point in bringing up something that’s only going to make you sad, it ain’t going to change it, it ain’t going to bring her back. When you start thinking like that, it can be really damaging.”  A Kensington Palace spokesman said the royals had been overwhelmed by the response to their campaign. “Having asked others to start conversations on mental health with their friends and families, they wanted to show that they are taking part as well,” the spokesman said. Claim: UK's William, Harry and Kate open up about emotional struggles.
Britain’s Prince William, his wife Kate and brother Harry have given their most public comments on their emotional struggles and how the siblings’ closeness helped them cope with their mother’s death.

Paragraph: WTOP-FM reports that the Fairfax County Fire and Rescue Department is partnering with the National Fire Protection Association Research Foundation on a four-phase study. Part of the focus of the study will be on how chemicals can cling to breathing equipment used by firefighters. Firefighters are exposed to toxic chemicals released into the air by burning buildings and vehicles. According to a National Institute for Occupational Safety and Health study, firefighters are twice as likely to get skin and testicular cancer and mesothelioma. ___ Information from: WTOP-FM, http://www.wtop.com Claim: Firefighters study carcinogen exposure.
Firefighters in Virginia are taking part in a study aimed at finding ways to reduce their exposure to carcinogens.

Paragraph: A skier takes a jump during sunny winter weather at the Swiss mountain area of Hoch-Ybrig, south of Zurich, February 23, 2011. REUTERS/Arnd Wiegmann Lisa Wheeler, a New York-based fitness instructor, believes it’s never too late to get in shape to make skiing more enjoyable and safe. But don’t overdo it. “Do some basic strength training for the legs, core and arms,” said Wheeler, fitness program director for DailyBurn, an online workout site. “But if you haven’t done anything, dial it back a little.”   Wheeler recommends lunges to strengthen the quadriceps, the long muscles in the front of the thigh. “Lunges are quad-dominant and skiing is very quad dominant because your knees are bent and you’re going downhill,” she said. “And lunges also work the hamstrings and glutes,” she explained, referring to the large muscles that form the buttocks. Wheeler thinks the novice can forgo jumping or hopping lunges and concentrate instead on matrix lunges, basically stepping to and pushing off different directions across the range of motion. “For the last-minute person I recommend taking it easy,” she said. Wheeler said people think of skiing as going in one direction, downhill, and neglect to prepare their hips and core for the considerable demands of the activity. “If you analyze skiing there’s a lot of rotation and lateral movement of the hips,” she said. “I would do some core exercises, such as planks, and rotational movements with the medicine ball,” she said. “Because going down the slopes your body is turning, your hips are turning.”   Jessica Matthews of the American Council on Exercises suggests exercises that mimic the activity of skiing, which along with cardiovascular fitness and muscle strength, demands a measure of speed and agility. “I’m a huge fan of cone drills,” she said. “I just picked up a set for the house.”   Sold in sporting goods stores, cones are smaller and lighter than traffic cones. Matthews, an exercise physiologist, thinks they are ideal for setting up a circuit to train for the movements of weaving down a mountain. “You can work on developing lower body strength, lateral movements, do cone jumps and practice proper landing,” she said. Squats and lunges build lower body strength but for those challenged by a full squat, Matthews suggests the wall sit, which is essentially placing the back against the wall with knees bent. Ideally, she said, you want to begin a pre-ski routine at least six weeks prior to hitting the slopes. “That’s a good time from physiological standpoint,” she said. Another crucial element to skiing is the ability to react quickly. “Downhill is not straight downhill,” said Matthews. “You have to dodge people. You’ve got to be able to make quick changes, you might have to counter a fall, so it’s important to make sure your hips, legs, shoulders, spine are all ready to go.” Wheeler said. Claim: Pre-ski preparations help before hitting the slopes.

Hitting the slopes can be daunting for an out-of-shape beginner and even for more experienced skiers, but fitness experts say whatever your level of expertise, everyone can benefit from a bit of pre-ski preparation.