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Along with the likes of Franklin D. Roosevelt and John F. Kennedy, Ulysses S. Grant is one of a handful of presidents who used a middle initial in his formal written name. But that distinguished "S" is actually an accident. As a young man, the story goes, Grant—whose given name was Hiram Ulysses Grant—was seeking admission to the U.S. Military Academy at West Point. When his congressman nomina

The only thing more iconic than Abraham Lincoln's stovepipe hat is his beard. But Honest Abe didn't always have that famous facial hair. When he was campaigning for president, he was clean-shaven. In fact, he'd always been clean-shaven. That changed, however, in October 1860, when Lincoln received a letter from an 11-year-old girl named Grace Bedell. "If you will let your whiskers grow I will try and get [my brothers] to vote for you," Bedell wrote to Lincoln. "You would look a great

Spouses and children are as familiar a factor in presidential politics as shaking hands and kissing babies on the campaign trail. But the country's 15th president, James Buchanan, was a rare lifelong bachelor in the White House—a soloist, save for his intimate friendship with fellow politician Wi

If John Tyler were alive today, he might make a a convincing candidate for starring in his own reality TV show. That's because he fathered 15 children—more than any other U.S. president. Tyler had eight children with his first wife, Letitia Christian, who died of a stroke in 1842, just one year into Tyler's first and only term. In 1844, he the

America's ninth president, William Henry Harrison, was long-winded—but sadly, his presidency was not long-lived. On March 4, 1841, Harrison gave what ended up being the longest-ever inaugural address by a U.S

That statistic about the Latino-American community makes sense, seeing as negative blood types—whether type A, type B, type AB, or type O—are few and far between. In fact, according to the Oklahoma Blood Institute, only about 18 percent of the total U.S. population has a negative blood type

While type O is the most common blood type overall, it's especially prevalent in the Latino-American community. According to the American Red Cross, approximately 53 percent of Latino-Americans are type O+ and 4 percent are type O-.

Whether or not you're Rh positive or Rh negative could have an impact on your pregnancy. According to the American College of Obstetricians and Gynecologists, problems can occur when a woman is Rh negative and her fetus is Rh positive, as thi

In addition to mental health issues, people with Rh-negative blood types are also more prone to developing allergies. In the same PLoS One study, researchers found that subjects with Rh-negative blood were slightly mo

The minority of the population who is Rh negative is at a higher risk of certain mental health issues. A 2015 study of more than 3,000 subjects published in the journal PLoS One found that "Rh negative men more often reported certain mental health disorders including panic disorders, antisocial personality disorders, and attention deficits.

If your blood type is AB, then you'll want to keep a close watch on your cognitive health. One 2014 study published in the journal Neurology analyzed the relationship between blood type and brain health and found that people with type AB blood had an 82 percent higher risk of cognitive impairment. And for more on protecting yourself from cognitive issues down the road, check out 40 Habits to Reduce Your Risk of Dementia After 40.

Though non-A blood types are relatively less likely to get stomach cancer, they still have to worry about pancreatic cancer. In the same 2015 study, researchers found that all non-O blood types were at a higher risk of pancreatic cancer, and subjects with type B blood were 59 percent more likely to come down with the cancer. And for more on the symptoms of this particular condition, check out 13 Warning Signs Your Pancreas Is Trying to Tell You Something's Wrong

Stomach cancer and type A blood seem to go hand in hand. That's according to a 2015 study published in the journal Cancer Epidemiology, which found that people with type A blood were 38 percent more likely to develop stomach cancer than those with type O blood. And for more things you should know about your abdomen, check out This Is Everything Your Stomach Is Trying to Tell You About Your Health.

If you have type O blood, then your heart is in luck: According to research presented at the 2017 World Congress on Acute Heart Failure, individuals with this blood type are less likely to suffer a heart attack or stroke. The bad news? Individuals who are type A, type B, or type AB—in other words, some 63 percent of the overall population—have a 9 percent increased risk of both coronary and cardiovascular events

Although people with type O blood are more susceptible to bites, they can thank their genetics for one thing: protection against malaria. Oddly enough, scientists have found that folks with type O blood seldom die from malaria, seeing as the RIFIN protein—the protein that causes malaria—is less able to bond to type O blood cells and therefore cannot do as much damage.