10 Interesting Facts on Our Body

1. Why do we Yawn?

One is that when we are bored or tired, we just don’t breathe as deeply as we usually do. As this theory goes, our bodies take in less oxygen because our breathing has slowed. Therefore, yawning helps us bring more oxygen into the blood and move more carbon dioxide out of the blood.

2. Why Does alcohol make you pee?

Alcohol is a diuretic. What this means is, when you drink alcohol, you produce more urine. This happens because alcohol suppresses the release of arginine vasopressin or anti-diuretic hormone (ADH), the hormone that allows your kidneys to return water to your bloodstream. The effect is additive, so drinking more alcohol increases the level of dehydration. Another part of the reason you visit the bathroom more often is because alcohol also stimulates the bladder, so you’ll feel the urge to pee sooner than you would ordinarily.

3. What part of brain is affected by alcohol?

Hippocampus: This is the part of the brain that stores memory. It is still maturing during adolescence. Even a small amount of alcohol can make teens forget what they did or learned while they were drinking.

4. What causes your heart to beat?

The electrical system of your heart is the power source that makes this possible. The impulse starts in a small bundle of specialized cells located in the right atrium, called the SA node. The electrical activity spreads through the walls of the atria and causes them to contract. This forces blood into the ventricles.

5. Can you feel pain in your brain?

There are no pain receptors in the brain itself. But he meninges (coverings around the brain), periosteum (coverings on the bones), and the scalp all have pain receptors. Surgery can be done on the brain and technically the brain does not feel that pain. With that said, the brain is the tool we use to detect pain.

6. Why does your hair turn white when you get older?

As we get older, the pigment cells in our hair follicles gradually die. When there are fewer pigment cells in a hair follicle, that strand of hair will no longer contain as much melanin and will become a more transparent colour like grey, silver, or white as it grows.

7. What percentage of the human brain is water?

“Your brain is made up of about 75 percent water” and then “The human brain is the fattest organ in the body and may consists of at least 60 percent fat”. Or: “The old adage of humans only using 10% of their brain is not true.

8. Why do we have eyebrows?

Their main function is hypothesized to prevent sweat, water, and other debris from falling down into the eye socket, but they are also important to human communication and facial expression. It is not uncommon for people to modify their eyebrows by means of hair addition, removal and makeup.

9. What Happens to Your Body When You’re Kissing?

The physical thrill may prompt your brain to cue up dopamine, a neurotransmitter associated with pleasure. At the same time, other parts of your brain are shutting down negative emotions. Your lip-locking may also have prompted your pituitary gland (and his) to release oxytocin, the “bonding hormone.” You two might already be forming an emotional attachment.

10. Why does your stomach growl when you are hungry?

This process cleans up any food that was missed earlier. The stomach muscle contractions also help to make you hungry, so you eat more food than your body needs. When these muscle contractions get going again and your stomach is empty, those gas and air pockets make a lot more noise than you hear as stomach growling.

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