CLS Check This Out!

  Credit:  OGphoto / iStock A Cave Lies Beneath the Lincoln Memorial Most people who visit the Lincoln Memorial spend all of their investigative energy trying to find the famous typo carved into the walls. However, underneath the memorial, there’s an even better-hidden gem — a  full cave  complete with stalactites. Construction workers stumbled upon the cave in the 1970s when digging out an elevator shaft for disabled visitors. Apart from the gorgeous nine-foot stalactite rock formations, the most fascinating part of the cave is the graffiti that adorns the 122 supporting columns. Visitors who embark on a cave tour can view these original World War I-era scribbles made by an unidentified construction worker. They include caricatures of everyone from Woodrow Wilson to the monument’s construction foreman. Note:  The above comes directly from their website.  Click here to read more.

  Credit:  Cozy Home / Shutterstock You Need Salt to Live Sodium helps your body manage water; without it, your cells can start to swell. This condition is called  hyponatremia , and it can cause serious medical problems. It’s generally a good idea to  watch your salt intake  to make sure that you don’t get too much — but sodium is really about balance, and it’s possible to  not get enough . Hyponatremia is often caused by medication and certain underlying health problems, but it can also be caused by drinking too much water (this is  very hard to do ) or alcohol. Note:  The above comes directly from their website.  Click here to read more.

  Why Do We Say “Eat Your Heart Out”? “Eat your heart out” isn’t just a great advertising slogan for an all-you-can-eat buffet. It’s also a phrase most commonly used in a boastful manner to induce feelings of envy, regret, and other similar emotions. If someone tells you to eat your heart out, they might be lauding an accomplishment over your head. For instance, maybe you expressed some doubt they would get a promotion at work, and they want to brag a bit. As to why the heart was chosen out of all the organs for this phrase, perhaps it’s because our hearts are so deeply intertwined with passion and emotions, unlike the kidneys or skin, for example. Note:  The above comes directly from their website.  Click here to read more.

  Credit:  GKlps / Shutterstock Sea Turtles Cry Out Excess Salt If you look closely, you may notice a  sea turtle crying  when it comes ashore. It’s not because it’s sad — it’s because their bodies take in more salt from the sea than they can excrete in their urine. They have a gland in each eye that excretes salt into their tears. It’s always working, but it only looks like tears outside the water. Some butterflies in the western Amazon, low on reliable sources of sodium, gather around river turtles and  drink their tears , too. Note:  The above comes directly from their website.  Click here to read more.