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Eleven people have died so far in 2019 while climbing Mount Everest, a behemoth of a mountain that towers 29, 029 feet above sea level. This is more than twice the number of people who died climbing Everest in 2018, which saw only five deaths that season.But it's not the number of deaths that some may find shocking — it's the reasons behind them. Only two of this season's Mount Everest deaths can be attributed to falls.So what's killing climbers ascending the mountain? It's primarily exhaustion and altitude sickness, and something called "the death zone."Seasoned climbers call any part of the mountain above 26,000 feet "the death zone" because there is only so long a human can survive at that elevation due to lack of oxygen. "Even when using bottled oxygen, supplemental oxygen, there's only a very few number of hours that we can actually survive up there before our bodies start to shut down," mountain guide Adrian Ballinger told CNN. And, unfortunately, the wait at the summit of Mount Everest plays a role in these deaths because the longer someone is at that altitude, the more severe they feel the effects from lack of oxygen and exhaustion. During the week beginning May 20, crowds of climbers became stuck in a queue to the summit. When this happens, climbers aren't eating, drinking or sleeping and continue to use up vital oxygen, which can lead to death.British climber Robin Haynes Fisher was one of those who had warned of the dangers of overcrowding."With a single route to the summit, delays caused by overcrowding could prove fatal so I am hopeful my decision to go for the 25th will mean fewer people. Unless of course everyone else plays the same waiting game," he wrote in a captioned Instagram post on May 19.He died after suffering from what appeared to be altitude sickness at 28,215 feet, while returning from the summit on Saturday.Altitude sickness occurs when people are at high elevations for an extended period of time. It can happen anywhere that's 8,000 feet above sea level or more. There are three types of altitude sickness. From least to most severe, they are: acute mountain sickness, high-altitude pulmonary edema (HAPE) and high-altitude cerebral edema (HACE). The symptoms for all three types are similar (headache, fatigue, dizziness, nausea, vomiting, shortness of breath), but HAPE is accompanied by a buildup of fluid in the lungs and HACE, the most severe type of altitude sickness, occurs when there's a buildup of fluid in the brain.So how can climbers avoid the same deadly fate as the 11 who died? Simply put — be careful. Acclimate as slowly as you can to increased elevations, drinks tons of water, rest and immediately start descending if you feel symptoms of altitude sickness.CNN contributed to this story. 2782

Capitol Hill negotiations on emergency spending to combat the coronavirus outbreak are likely to produce a bill that’s double or even triple the 157

Current ESPN analyst and former New England Patriot Tedy Bruschi suffered a stroke on Thursday, his foundation tweeted Friday."Yesterday afternoon, Tedy has a stroke, known as a TIA," a statement from Bruschi's foundation, Tedy's Team, reads. "He recognized his warning signs immediately: arm weakness, face drooping and speech difficulties. Tedy is recovering well, and would like to thank the nurses, doctors and staff and Sturdy Memorial Hospital for all they have done. Tedy and his family thank you for the ongoing encouragement, and kindly ask for privacy at this time."Bruschi played 13 seasons in the NFL, all of them with the New England Patriots. He won three Super Bowls with the team.Bruschi suffered a stroke in the days following a win in Super Bowl XXIX in 2005. He was later diagnosed with a congenital heart defect — a small hole in a wall separating the atria of his heart.Bruschi has worked for ESPN as an analyst since his retirement in 2009. 974

Establishment-minded Democrats are warning primary voters that Bernie Sanders would struggle to defeat President Donald Trump and would hurt the party's chances in premier House, Senate and governors' races. The warnings come as Sanders shows new signs of strength in the first two states on the presidential primary calendar, backed by a dominant fundraising performance. The Vermont senator has largely escaped close scrutiny over the last year as his rivals doubted the quirky 78-year-old's ability to win the nomination. But less than a month before Iowa's kickoff caucuses, the doubters are being forced to take Sanders seriously. Sanders' camp says he has effected meaningful change in and out of Washington. 726

Facebook is settling several lawsuits that alleged its advertising platform allowed for discrimination in housing, employment and credit ads.From November 2016 to September 2018, the company was hit with five discrimination lawsuits and charges from civil rights and labor organizations, workers and individuals. The allegations claimed Facebook's ad systems excluded certain people from seeing housing, employment and credit ads based on their age, gender or race. One of the 489