Rick Santorum Juggles Sick Daughter, Ailing Campaign For presidential candidates, there's usually no five-day work week, no holiday vacations, no time for family emergencies and no leeway for personal problems. Running for president is a 24/7 affair, but when Rick Santorum's 3-year-old daughter, Bella, was taken to the hospital last weekend, the GOP contender made a rare move to take two days off from his arduous campaign schedule to stay by his daughter's side. As Bella battles the rare, and nearly always fatal, chromosomal genetic disorder Trisomy 18, Santorum is caught in a solemn juggling routine between ailing family members and fading presidential prospects, a somber situation that has plagued a handful of presidential candidates in recent years. In 2008, Democratic candidate John Edwards vowed to plug on with his primary bid while his wife battled breast cancer for the second time. And 2008 vice presidential nominee Sarah Palin had to balance her White House campaign with the demands of her infant son, Trig, who has Down syndrome. Considering the physical, emotional and intellectual demands that running a national campaign requires, psychologist Carl Mumpower said that when gauged against stress indexes, presidential candidates already had one of the most taxing jobs. Add a special needs child or sick spouse to the mix, and Mumpower said it could become a "distracting overload." "They are like political zombies going from meeting to meeting," said Mumpower, who took a hiatus from his private psychology practice in North Carolina to run for Congress in 2008. Campaigning at that level is an endurance contest, so any extra load in their backpack has the potential to be an overload. On top of that grueling campaign grind, many U.S. presidents have also had to cope with losing a loved one, which is "very very common" in the lives of America's commanders in chief, presidential historian Doug Wead said. "It's just stunning," said Wead, the author of "All the Presidents' Children" and "The Raising of a President," both about the personal lives of America's leaders. It's uncanny. It's like life gives them this great victory and then takes it away. From the first president to the current one, many of the country's leaders have lived through the death of an immediate family member, Wead said. President Obama's grandmother, who raised him as a child, died the day before he won the 2008 presidential election. Vice President Joe Biden's wife and 18-month-old daughter were killed in a car accident days before he was sworn in to his first Senate term in 1972. America's 14th president, Franklin Pierce, saw his son beheaded in a train wreck in the time between his election and his inauguration. And the seventh president Andrew Jackson's wife died days before his inauguration, reportedly while shopping for her inaugural gown. William Henry Harrison, who at 32 days served the shortest tenure of any president before dying of pneumonia, buried three of his sons in the three years preceding his presidency. Three months before his assassination, President John F. Kennedy's wife, first lady Jacquelilne Kennedy, gave birth to a premature son, Patrick Bouvier, who died of lung complications two days later. Calvin Coolidge, who held office in the 1920s, declined to run for a second term, in part, Wead said, because during his first term Coolidge's 16-year-old son died of blood poisoning from a blister on his foot that he got playing tennis. "Death is one of the most prevalent common denominators of the presidents," Wead said. The presidential historian said death seems to be a "trigger" for entering public life and seeking public office. It's the ultimate pain, and it has a kind of freeing. It frees you up to suffer what you're going to have to suffer in public life," he said. Death is ... very present and very much a big factor. Frank Farley, a psychologist at Temple University, said politicians are "exceptionally good" at dealing with personal hardships because the character traits that draw people to public office also make them more resilient. Politicians tend to be "risk-taking, resilient, self-confident people who can thrive on change and challenge and uncertainty," he said. They have that resilience and ability to handle a suddenly changed situation, because they are handling change all the time. How a politician copes with their grief or personal suffering can "humanize" them to the public, Farley said, making them a role model for others going through similar ordeals. "Politicians in a sense ... want to be role models for the nation, and therefore dealing with tragedy and loss with balance and perspective is a form of being a role model," he said. Al Gore, the Democratic nominee in the 2000 presidential election, was one of the first national politicians to discuss openly his seeking therapy in 1989 after his 6-year-old son was critically injured when he was hit by a car in 1989. His son eventually made a full recovery. Three elections before Gore lost to George W. Bush, Democratic presidential nominee Michael Dukakis took the opposite approach to the story of his brother's dying in a hit-and-run car accident years earlier. Rather than embracing his hardship, Dukakis downplayed it, immediately seeking to squash any rumors that he'd sought therapy after his brother's death, said Gerald Koocher, a pediatric psychologist and professor at Simmons College. Koocher said there used to be the "expectation that our leaders were somehow magical, superhuman cullers who were never subjected to adversity." But as public figures' personal lives become more widely broadcast through the 24-hour news cycle, those stigmas against tragedy are dissolving, he said. "We see much more openness today than there was in the past," Koocher said. People being able to go through a coping process by virtue of being sad or anxious about something is much more accepted today than it was before.