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  • Science continues to unravel the mysterious inner workings of the human body, and there is so much yet to be explored
  • Fascinating dimensions are being explored including: the truth about swallowing and breathing, the “brain” in your gut, the link between physical pain and feelings of loneliness, and one of the purposes of saliva
  • Also find out how a “natural” substance works better for your body than manufactured antibiotics, information about how we remember things, gender differences in how we see colors, the science behind boogers, secrets about how we breathe through our nostrils, and how weight gain affects the distance your heart has to pump blood
 

10 More Amazing Things About Our Bodies

September 19, 2012 | 133,398 views
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By Dr. Mercola

Your body truly is amazing, and we’ve only scratched the surface as far as discovering all of the mysteries of its extremely complex capabilities and inner workings.

The featured article highlighted 10 particularly noteworthy facts you may not be aware of, but which are utterly fascinating about your body.

10 Amazing Human Body Facts

10. You Can’t Swallow and Breathe at the Same Time

Virtually every other mammal can; however, human babies can only until they’re about 9 months old. Around this time the voice box drops quite low in the neck compared to other animals, which allows us to have a wide range of sounds for speech – but takes our ability to breathe and eat or drink at the same time.

9. You Have Two Brains

Just as you have neurons in your brain, you also have neurons in your gut – including neurons that produce neurotransmitters like serotonin, which is also found in your brain and is linked to mood. Your gut literally serves as your second brain, and even produces more of the neurotransmitter serotonin – known to have a beneficial influence on your mood – than your brain does.

In other words, you have two nervous systems: the central nervous system, composed of your brain and spinal cord, and the enteric nervous system, which is the intrinsic nervous system of your gastrointestinal tract. Both are actually created out of the same type of embryonic tissue. During fetal development, one part turns into your central nervous system while the other develops into your enteric nervous system.

To put this into more concrete terms, you've probably experienced the visceral sensation of butterflies in your stomach when you're nervous, or had an upset stomach when you were very angry or stressed. The flip side is also true, in that problems in your gut can directly impact your mental health, leading to issues like anxiety, depression, and perhaps even more serious neurodevelopmental disorders such as autism.

8. Loneliness is Physically Painful

Loneliness is emotionally painful for sure, but it’s physically painful as well. In fact, both loneliness and physical pain are processed in the same region of your brain, the anterior cingulate cortex. So just as you have a powerful drive to avoid causing physical pain to your body, you have a similarly powerful drive to connect with others and seek companionship – in order to avoid painful feelings of loneliness.

7. You Salivate More Before You Vomit

…And there’s a very good reason for this. Because stomach acid can be harsh on your throat and mouth, the extra saliva helps dilute the acid and rinse it away to minimize any damage caused by vomiting.

6. Sugar Can Help Your Wounds Heal

Not by eating it, of course, but rather by sprinkling it directly on the wound. Sugar is hygroscopic, which means it absorbs water that bacteria need to survive. This method has been popular among healers in Africa for generations, and it is reportedly useful for bed sores, leg ulcers, amputations and more.

A twist on this idea is to use honey, which will help draw fluid away from your wound and suppress the growth of microorganisms. Part of what gives honey its antibacterial properties is an enzyme called glucose oxidase, which the worker bees excrete into the nectar (this is found only in raw honey). Another part is the presence of beneficial Lactobacillus bacteria, found only in raw honey, which fight infection.

5. Memories Work in Mysterious Ways

Have you ever walked into a room and then forgotten why you went there in the first place? This is because your brain perceives the doorway as an “event boundary,” and memories from the room you just left are “stored” there for when you need them. This is why when you go back through the doorway into the prior room you can often remember what it is that you forgot!

4. Some Women See More Colors

Most people have three types of color receptors that allow them to see color vision. Some women have four, however, which allows them to see a wider range of colors than the average person (a small percentage of women even have five color receptors). Why women? The red and green color receptors, which can be shifted to allow for a greater range of color vision, are located on the X chromosome; blue is on the Y.

3. It Might be Healthy to Eat Boogers

Your nasal mucus might be host to small amounts of contaminants (acting as antigens) that may actually “educate” and boost your immune system when they’re consumed. So contrary to the belief that eating boogers could make you sick, it might actually help your body to fight off illnesses.

2. Most People Only Breathe Through One Nostril at a Time

Though you’ve got two nostrils, about 85 percent of people only use one at a time. But, erectile tissue in your nose slowly swells the tissue in one nostril while shrinking it in the other, so you automatically switch breathing between nostrils about every four hours.

Interestingly, body position, illness and other factors can influence which nostril you breathe from when, and, in turn, the nostril you’re breathing from can impact your health. For instance, breathing through the right nostril causes you to use more oxygen and raises your blood sugar levels.

1. Seven Miles of New Blood Vessels for Every Pound of Fat Gained

When you gain a pound of fat, your body makes seven new miles of blood vessels. This means your body must work harder to pump blood through all of these extra new vessels, which may put a strain on your heart, and may reduce oxygenation and nutrient replenishment in other tissues. Fortunately, if you lose a pound, your body will break down and re-absorb the now unnecessary vessels.

Seven More BONUS Facts!

In the second featured article, seven more strange but true body facts are highlighted… and they’re too fascinating to ignore:

  1. A Crease in Your Earlobe May Predict Heart Disease: A diagonal crease in your earlobe is linked to a much higher risk of coronary artery disease and sudden cardiac death in men.1
  2. Yawning Helps Cool Your Brain: Yawning is an involuntary behavior that may perform the important function of cooling your brain. When you yawn, the influx of cool air may ventilate your sinuses and facilitate brain cooling.
  3. Your Largest Organ is Only One Cell Thick: It’s your endothelium, the interior lining of your body’s 60,000-miles (plus) of blood vessels. If stretched out, your endothelium, which helps regulate blood pressure, control blood clotting and fight disease, would cover six tennis courts.
  4. Some People Taste Words: Your senses of taste, sound and sight are typically separate experiences, but in people with a condition called synesthesia, the senses overlap. These people may be able to “hear” colors and “taste” words as an ordinary part of life.
  5. You Can Smell Fear: Bodily sweat contains different pheromones when you’re frightened or not. People can detect the differences in their smell, and when they sniffed sweat from skydivers, it caused brain regions that react to fear to become active (which did not occur from sweat from treadmill users).2
  6. Women’s Tears Prompt Physical Changes in Men: When men sniffed women’s tears brought on by negative emotions, it led to reduced levels of sexual arousal and testosterone.3
  7. You Close Your Eyes When You Sneeze: This is caused by a reflex similar to what occurs when your knee is tapped with a rubber mallet. It’s extremely difficult to keep your eyes open while you sneeze, even if you try.

What Are GMOs?

From April 19th through April 25th we launch GMO Awareness Week. We set aside an entire week dedicated to providing you with information on GMOs and labeling initiatives.

GMOs are a product of genetic engineering, meaning their genetic makeup has been altered to induce a variety of “unique” traits to crops, such as making them drought-resistant or giving them “more nutrients.” GMO proponents claim that genetic engineering is “safe and beneficial,” and that it advances the agricultural industry. They also say that GMOs help ensure the global food supply and sustainability. But is there any truth to these claims? I believe not. For years, I've stated the belief that GMOs pose one of the greatest threats to life on the planet. Genetic engineering is NOT the safe and beneficial technology that it is touted to be.

Help Support GMO Labeling

The Grocery Manufacturers Association (GMA)—Monsanto’s Evil Twin—is pulling out all the stops to keep you in the dark about what’s in your food. For nearly two decades, Monsanto and corporate agribusiness have exercised near-dictatorial control over American agriculture. For example, Monsanto has made many claims that glyphosate in Roundup is harmless to animals and humans. However, recently the World Health Organization (WHO) had their research team test glyphosate and have labeled it a probable carcinogen.

Public opinion around the biotech industry's contamination of our food supply and destruction of our environment has reached the tipping point. We're fighting back. That's why I was the first to push for GMO labeling. I donated a significant sum to the first ballot initiative in California in 2012, which inspired others to donate to the campaign as well. We technically "lost the vote, but we are winning the war, as these labeling initiatives have raised a considerable amount of public awareness.

The insanity has gone far enough, which is why I encourage you to boycott every single product owned by members of the GMA, including natural and organic brands. More than 80 percent of our support comes from individual consumers like you, who understand that real change comes from the grassroots.

Thankfully, we have organizations like the Organic Consumers Association (OCA) to fight back against these junk food manufacturers, pesticide producers, and corporate giants.

Internet Resources Where You Can Learn More

Together, Let's Help OCA Get The Funding They Deserve

Let’s Help OCA get the funding it deserves. I have found very few organizations who are as effective and efficient as OCA. It’s a public interest organization dedicated to promoting health justice and sustainability. A central focus of the OCA is building a healthy, equitable, and sustainable system of food production and consumption. That's why I'm proud to announce I will be matching donations up to $250,000 this week.

Please make a donation to help OCA fight for GMO labeling.


Donate Today!

What Are GMOs?

From April 19th through April 25th we launch GMO Awareness Week. We set aside an entire week dedicated to providing you with information on GMOs and labeling initiatives.

GMOs are a product of genetic engineering, meaning their genetic makeup has been altered to induce a variety of “unique” traits to crops, such as making them drought-resistant or giving them “more nutrients.” GMO proponents claim that genetic engineering is “safe and beneficial,” and that it advances the agricultural industry. They also say that GMOs help ensure the global food supply and sustainability. But is there any truth to these claims? I believe not. For years, I've stated the belief that GMOs pose one of the greatest threats to life on the planet. Genetic engineering is NOT the safe and beneficial technology that it is touted to be.

Help Support GMO Labeling

The Grocery Manufacturers Association (GMA)—Monsanto’s Evil Twin—is pulling out all the stops to keep you in the dark about what’s in your food. For nearly two decades, Monsanto and corporate agribusiness have exercised near-dictatorial control over American agriculture. For example, Monsanto has made many claims that glyphosate in Roundup is harmless to animals and humans. However, recently the World Health Organization (WHO) had their research team test glyphosate and have labeled it a probable carcinogen.

Public opinion around the biotech industry's contamination of our food supply and destruction of our environment has reached the tipping point. We're fighting back.  That's why I was the first to push for GMO labeling. I donated a significant sum to the first ballot initiative in California in 2012, which inspired others to donate to the campaign as well. We technically "lost the vote, but we are winning the war, as these labeling initiatives have raised a considerable amount of public awareness.

The insanity has gone far enough, which is why I encourage you to boycott every single product owned by members of the GMA, including natural and organic brands. More than 80 percent of our support comes from individual consumers like you, who understand that real change comes from the grassroots.

Thankfully, we have organizations like the Organic Consumers Association (OCA) to fight back against these junk food manufacturers, pesticide producers, and corporate giants.

Internet Resources Where You Can Learn More

Together, Let's Help OCA Get The Funding They Deserve

Let’s Help OCA get the funding it deserves. I have found very few organizations who are as effective and efficient as OCA. It’s a public interest organization dedicated to promoting health justice and sustainability. A central focus of the OCA is building a healthy, equitable, and sustainable system of food production and consumption. That's why I'm proud to announce I will be matching donations up to $250,000 this week.

Please make a donation to help OCA fight for GMO labeling.


Donate Today!

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