Because I Said So!

If you've never met the glare of a mother warning you to bundle up before stepping into the cold, then consider yourself a lucky non-victim of old wives’ tales. Because beliefs, such as the idea that chilly weather will cause the common cold (no proof yet), are pretty much a mainstay amongst health expert imposters and moms alike.
 
What about the ones that do ring true? Well, we have analyzed a few of the best to help you keep living healthier. So, sit back and start learning, but don’t sit too close to the screen because it may harm your eyes (so not true)!
 
The tale: If you drop food on the floor, follow “the five-second rule.”
The truth: Experts say the one-second rule isn’t even an option due to the bacteria that instantly infects the food when it hits the floor. And with the 76 million cases of foodborne illnesses that plague the United States every year, it’s best to toss any food that is dropped on the floor.
 
The tale: Cracking your knuckles may cause arthritis.  
The truth: It’s a bad habit, but popping your knuckles will not cause osteoarthritis. In fact, in a study of knuckle crackers versus people who never cracked their joints, there was no difference between the two groups. But a few things this bad habit may cause are a weaker grip and hand swelling, both of which can result in a loss of dexterity. So, although arthritis is caused by genetics and older age, knuckle cracking may be a tendency you want to swap for a less harmful one, like gum chomping or hair twirling.
 
The tale: “Double dipping” is a total germ-fest.
The truth: Swapping spit via chips and dip really can transfer germs and bacteria to other people. So, if you see another person take a second scoop of dip after already digging in, then you better be comfortable kissing him or her.
 
We’re curious: What’s your favorite old wives’ tale. Do you think there is any truth in it? [MSNBC]