human body

Scott Kelly is two inches taller after 340 days in space

After 340 days on the International Space Station, Scott Kelly grew 2 inches taller than his twin brother who spent the time on Earth, CNBC reports.

Gaining a couple inches is pretty common among astronauts that spend a significant amount of time in space. That’s because the microgravity environment allows room for their vertebrae to expand. Here’s how NASA explains it:

Imagine that the vertebrae in your back form a giant spring. Pushing down on the spring keeps it coiled tightly. When the force is released, the spring stretches out. In the same way, the spine elongates by up to 3% while humans travel in space. There is less gravity pushing down on the vertebrae, so they can stretch out — up to 7.6 centimeters (3 inches).

He aged less than us Earth-bound humans too.

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“The atoms of our bodies are traceable to stars that manufactured them in their cores and exploded these enriched ingredients across our Galaxy, billions of years ago. For this reason, we are biologically connected to every other living thing in the world. We are chemically connected to all molecules on Earth. And we are atomically connected to all atoms in the Universe. We are not figuratively, but literally Stardust.” - Neil deGrasse Tyson

Structurally, the nervous system has two components: the central nervous system and the peripheral nervous system.The central nervous system is made up of the brain, spinal cord and nerves. The peripheral nervous system consists of sensory neurons, ganglia (clusters of neurons) and nerves that connect to one another and to the central nervous system.

Functionally, the nervous system has two main subdivisions: the somatic, or voluntary, component; and the autonomic, or involuntary, component. The autonomic nervous system regulates certain body processes, such as blood pressure and the rate of breathing, that work without conscious effort. The somatic system consists of nerves that connect the brain and spinal cord with muscles and sensory receptors in the skin.

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Randolph Stone - Polarity Therapy.

Polarity Therapy is a four-part approach to balancing the Energetic patterns of the body. Based on principles developed by Randolph Stone, Polarity Therapy combines bodywork, nutrition, stretching postures and attitudinal counseling to free Energy blockages and establish a Natural Energy flow for Self-Healing.

Stone formulated his therapy based on the underlying principle of wireless currents in, around and through the body. It is this subtle Energy flow that gives Life and through which the Soul functions. Quite simply, disease occurs when the flow is disrupted. Polarity Therapy, rather than treating disease, is focused on reestablishing the Natural Balance of this flow, which in turn allows Healing to take place.

Polarity Therapy practitioners concern themselves with the positive, negative and neuter states of the Energetic wiring, flowing vertically and horizontally, and spiraling from the top of the body downward and from the center outward. The center from which the Energy flows and to which it returns, is considered the Source of the Energy and this triune action is what is required to keep the flow in motion.

According to Stone, this circuitry flows in all aspects of Life and is a basic principle in Nature. Everything has a middle with opposing ends, in constant communication and relationship. In this law of relationship, there is attraction (pleasure/sensory) and repulsion (pain/motor). Blockage is more likely to occur in the negative (outgoing) flow. It is when the outgoing force is unable to remove from the system “unassimilable physical, emotional or mental material” that disruption in the circuitry occurs and the system becomes dysfunctional.

If you’re in the health science field and haven’t already, eventually you will have to know how to give injections. This is a very common practice and there are plenty of people that cant stand the thought of needles especially inserting it into a person. Its very important you get it right or else it could lead to damages. Here are some tips on inserting needles the right way.

www.learninghumananatomy.com

The Human Body Isn’t Ready For Mars

We’re very close to having the technology to send astronauts to the red planet, but that doesn’t mean the human body is physically ready for such an endeavor. Right now, it would take between 6 and 8 months to get to Mars and during the trip astronauts would be at risk for vision impairment, bone density loss, and even muscle atrophy.

So, what would it take? Find out here

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Occult Anatomy of a Man.

Illustration above depicts the occult anatomy of the human body, as projected on the Vitruvian Man (originally done by Leonardo da Vinci). It unifies the Tree of Life, the Yogic Chakras, and information from Kundalini Yoga, Tantra, Astrology, Tarot and Alchemy. 

10 Facts About Water + Your Body

Water is virtually everywhere, from soil moisture and ice-caps to the cells inside our own bodies. On a normal, day-to-day basis, maintaining a well-hydrated system is easy to manage for those of us fortunate enough to have access to clean drinking water. So what role does water play in our bodies , and how much do we actually need to drink to stay healthy?

1. Depending on factors like location, fat index, age and sex, the average human is between 55 and 60% water. 

2. At birth, human babies are even wetter – being 75% water they are swimmingly similar to fish - but their water composition drops to 65% by their first birthday. 

3. The H2O in our bodies works to cushion and lubricate joints, regulate temperature and to nourish the brain and spinal cord. 

4. Water isn’t only in our blood: an adult’s brain and heart are almost three-quarters water - that’s roughly equivalent to the amount of moisture in a banana. 

5. Lungs are 83% water, which is roughly the amount of moisture in an apple.

6. Even seemingly dry human bones are 31% water. 

7. Each day we lose 2 to 3 liters through our sweat, urine and bowel movements, and even just from breathing. While these functions are essential to our survival, we need to compensate for the fluid loss.

8. Maintaining a balanced water level is essential to avoid dehydration or overhydration - both of which can have devastating effects on overall health. Increased dehydration can cause notable drops in energy, mood, skin moisture and blood pressure as well as signs of cognitive impairment.  In fact, a dehydrated brain works harder to accomplish the same amount as a normal brain - and it even temporarily shrinks because of its lack of water.

9. For a long time, conventional wisdom said that we should drink eight glasses a day. That estimate has since been fine-tuned; now the consensus is that the amount of water we need to imbibe depends largely on our weight and environment. The recommended daily intake varies from between 2.5 to 3.7 liters of water for men and about 2 to 2.7 liters for women - a range that is pushed up or down if we are healthy, active, old or overheating. But don’t go crazy - it’s possible to overhydrate if you consume too much water in a short amount of time - a risk mostly encountered by athletes because of complications in regulating water levels in extreme physical conditions.

10. Water within food makes up about a fifth of our daily H20 intake. Fruits and vegetables like strawberries, cucumbers and even broccoli are over 90% water and can supplement liquid intake while providing valuable nutrients and fiber.

Drinking well might also have various long-term benefits. Studies have shown that optimal hydration can lower the chance of stroke, help manage diabetes and potentially reduce the risk of certain types of cancer. No matter what, getting the right amount of liquid makes a world of difference in how you’ll feel, think and function day-to-day.

From the TED-Ed Lesson What would happen if you didn’t drink water? - Mia Nacamulli

Animation by Chris Bishop