Showing posts with label Human Facts. Show all posts
Showing posts with label Human Facts. Show all posts

January 3, 2014

Skin Aging Facts - Factors Affecting Aging Process

Skin aging is a natural process and several factors contribute to it. Sun exposure, smoking, high sugar intake, stress and alcohol consumption are some of the factors that contribute to aging process. So there is a need to avoid these factors to maintain a younger looking skin.

Factors that Promote Skin Aging
Smoking causes the development of wrinkles. It lowers the level of vitamin C in the body, a vitamin that is important for maintaining the skin moist and plump. Smoking causes the release of free radicals that damage the skin. So, it is better to avoid smoking.
Another important factor that leads to the development of wrinkles is sun exposure. Overexposure to sun causes skin drying and saggy skin, both of which eventually lead to development of fine lines. So, try to avoid excessive sun exposure and apply a sunscreen lotion when your out in the sun. 
Exercises play a prominent role in anti aging process. Exercises help in maintaining proper muscle tone and they also enhance the rate of blood flow to the skin. They help in energy rejuvenation and makes you feel younger.
Cold weather can also be the reason for development of dry skin which ultimately causes aging skin. So, use a good moisturizer to prevent skin drying.
Excessive sugar intake is responsible for wrinkle development. High sugar in the blood tends to attach to proteins and produces harmful molecules called as advanced glycation products. These products cause damage to proteins collagen and elastin that maintain skin elasticity and structure. Collagen once damaged produces a brittle, dry and sagging skin. 
Alcohol consumption dilates blood vessels and is known to increase blood flow at skin’s surface. As time progresses, blood vessels are damaged permanently and pose a flushed and broken appearance.
Apart from the above factors, certain other factors such as excessive stress, lack of sleep etc also causes skin aging.
Skin Care

Our skin reflects the state of our inner health!

We often spend $100s, even $1000s on skin care products, cosmetic laser treatments and other beauty products and never consider the general state of our body’s health. There is so much more to radiant, healthy looking skin than just external treatments. Here is a list of additional factors that affect our skin’s health and appearance.

Causes of wrinkles, dryness and dehydrated skin:

Smoking 
Extensive sun exposure and tanning beds – longterm exposure to ultraviolet light increases the formation of Free Radicals in our bodies which leads to early aging.
Poor diet and Nutritional Deficiencies– the foods we ingest are crucial for our skin and general health. Our skin requires specific nutrients in order to maintain a healthy appearance: 
o Anti-oxidants combat Free Radicals. A deficiency in the following anti-oxidants promotes early signs of aging:
  • Vitamin A
  • Vitamin C
  • Vitamin E 
o Vitamin Bs – among the US population is an almost epidemic deficiency in Vitamin Bs. The following B-Vitamins are necessary for healthy skin:
  • Vitamin B2 – Riboflavin
  • Vitamin B3 – Niacin
  • Vitamin B6 – Pyridoxine
o Minerals – The following minerals are essential for radiant skin:
  • Zinc – prevents break-outs and acne
  • Selenium – combats Free Radicals
  • Magnesium – prevents cell dehydration and aids in body’s detox
o Essentially Fatty Acids – Omega-3s, found primarily in fish oils, are crucial for maintaining optimal cell health and preventing dryness and eczema. Choose a high-quality medical grade fish oil that has been tested for heavy metals and other toxins.
o Healthy Fats – the human body needs saturated fats to maintain healthy cell membranes and arteries. It is not the saturated fats that cause plaque in the arteries or but rather the highly unstable poly-unsaturated fats from vegetable oils. These isolated plant fats quickly become rancid and change into Free Radicals when exposed to light, heat and oxygen. Their consumption affects the elasticity and permeability of our cell walls and causes hardening of the same. Saturated fats from dairy, meats, poultry and eggs, coconut and palm oil on the other hand, are very stable and highly beneficial for the body. They help maintain healthy cell membranes, arteries and smooth skin. 
Hormone Imbalance – Balanced hormones are crucial for brain, bone heart and skin health. Let’s look at the primary hormones affecting skin health: 
o Testosterone – too much leads to acne; too little causes skin to become loose/lax;
o Estrogen – maintains healthy collagen levels, prevents thinning of skin (remember grandma’s paper-thin skin?);
o Thyroid – imbalances can cause dry skin, brittle nails and hair
o Cortisol – elevated cortisol levels from stress and anxiety lead to premature aging
Lack of sleep – Insomnia is often caused by the following: 
o elevated nocturnal cortisol levels
o Low progesterone – progesterone is our ‘sleep hormone’
o imbalanced brain chemistry – Low Serotonin levels, for instance, contribute to depression, anxiety, and mind-racing, which are all affecting our sleep. At night, while we are sleeping, the body heals and restores; lack of sleep leads to premature aging and weight gain.
Dehydration - for optimal detoxification and many other functions our body requires adequate water intake every day. Drink half your body weight in oz of water.
Too much alcohol – alcohol causes general body dehydration and affects the liver and, hence, our body’s ability to detoxify. Alcohol also raises blood sugar which increases androgen production and,promotes acne.
Lack of exercise – Regular exercise improves blood flow and rejuvenation of skin; sweating is a form of detox and increased secretion of sebum, our body’s natural moisturizer.

Posted on 4:11 AM by Unknown

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11 Weirdo Facts About your Hair And Nails


While they’re not a living part of your body, most people spend a good amount of time caring for their hair and nails. The next time you’re heading in for a haircut or manicure, think of these facts.

Facial hair grows faster than any other hair on the body. If you've ever had a covering of stubble on your face as you’re clocking out at 5 o’clock you’re probably pretty familiar with this. In fact, if the average man never shaved his beard it would grow to over 30 feet during his lifetime, longer than a killer whale.

Every day the average person loses 60-100 strands of hair. Unless you’re already bald, chances are good that you’re shedding pretty heavily on a daily basis. Your hair loss will vary in accordance with the season, pregnancy, illness, diet and age. 

Women's hair is about half the diameter of men’s hair. While it might sound strange, it shouldn't come as too much of a surprise that men’s hair should be coarser than that of women. Hair diameter also varies on average between races, making hair plugs on some men look especially obvious.

One human hair can support 3.5 ounces. That’s about the weight of two full size candy bars, and with hundreds of thousands of hairs on the human head, makes the tale of Rapunzel much more plausible.

The fastest growing nail is on the middle finger. And the nail on the middle finger of your dominant hand will grow the fastest of all. Why is not entirely known, but nail growth is related to the length of the finger, with the longest fingers growing nails the fastest and shortest the slowest.

There are as many hairs per square inch on your body as a chimpanzee. Humans are not quite the naked apes that we’re made out to be. We have lots of hair, but on most of us it’s not obvious as a majority of the hairs are too fine or light to be seen.

Blondes have more hair. They’re said to have more fun, and they definitely have more hair. Hair color determines how dense the hair on your head is. The average human has 100,000 hair follicles, each of which is capable of producing 20 individual hairs during a person’s lifetime. Blondes average 146,000 follicles while people with black hair tend to have about 110,000 follicles. Those with brown hair fit the average with 100,000 follicles and redheads have the least dense hair, with about 86,000 follicles.

Fingernails grow nearly 4 times faster than toenails. If you notice that you’re trimming your fingernails much more frequently than your toenails you’re not just imagining it. The nails that get the most exposure and are used most frequently grow the fastest. On average, nails on both the toes and fingers grow about one-tenth of an inch each month.

The lifespan of a human hair is 3 to 7 years on average. While you quite a few hairs each day, your hairs actually have a pretty long life providing they aren't’t subject to any trauma. Your hairs will likely get to see several different haircuts, styles, and even possibly decades before they fall out on their own.

You must lose over 50% of your scalp hairs before it is apparent to anyone. You lose hundreds of hairs a day but you’ll have to lose a lot more before you or anyone else will notice. Half of the hairs on your pretty little head will have to disappear before your impending baldness will become obvious to all those around you.

Human hair is virtually indestructible. Aside from it’s flammability, human hair decays at such a slow rate that it is practically non-dis-integrative. If you’you've ever wondered how your how clogs up your pipes so quick consider this: hair cannot be destroyed by cold, change of climate, water, or other natural forces and it is resistant to many kinds of acids and corrosive chemicals.

Posted on 2:11 AM by Unknown

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10 Facts About Your Brain That You Didn't Know


The human brain is the most complex and least understood part of the human anatomy. There may be a lot we don’t know, but here are a few interesting facts that we've got covered.

1. Nerve impulses to and from the brain travel as fast as 170 miles per hour. Ever wonder how you can react so fast to things around you or why that stubbed toe hurts right away? It’s due to the super-speedy movement of nerve impulses from your brain to the rest of your body and vice-versa, bringing reactions at the speed of a high powered luxury sports car. 

2. The brain operates on the same amount of power as 10-watt light bulb. The cartoon image of a light bulb over your head when a great thought occurs isn't too far off the mark. Your brain generates as much energy as a small light bulb even when you’re sleeping. 

3. The human brain cell can hold 5 times as much information as the Encyclopedia Britannica. Or any other encyclopedia for that matter. Scientists have yet to settle on a definitive amount, but the storage capacity of the brain in electronic terms is thought to be between 3 or even 1,000 terabytes. The National Archives of Britain, containing over 900 years of history, only takes up 70 terabytes, making your brain’s memory power pretty darn impressive. 

4. Your brain uses 20% of the oxygen that enters your bloodstream. The brain only makes up about 2% of our body mass, yet consumes more oxygen than any other organ in the body, making it extremely susceptible to damage related to oxygen deprivation. So breathe deep to keep your brain happy and swimming in oxygenated cells. 

5. The brain is much more active at night than during the day. Logically, you would think that all the moving around, complicated calculations and tasks and general interaction we do on a daily basis during our working hours would take a lot more brain power than, say, lying in bed. Turns out, the opposite is true. When you turn off your brain turns on. Scientists don’t yet know why this is but you can thank the hard work of your brain while you sleep for all those pleasant dreams. 

6. Scientists say the higher your I.Q. the more you dream. While this may be true, don’t take it as a sign you’re mentally lacking if you can’t recall your dreams. Most of us don’t remember many of our dreams and the average length of most dreams is only 2-3 seconds–barely long enough to register. 

7. Neurons continue to grow throughout human life. For years scientists and doctors thought that brain and neural tissue couldn't grow or regenerate. While it doesn't act in the same manner as tissues in many other parts of the body, neurons can and do grow throughout your life, adding a whole new dimension to the study of the brain and the illnesses that affect it. 

8. Information travels at different speeds within different types of neurons. Not all neurons are the same. There are a few different types within the body and transmission along these different kinds can be as slow as 0.5 meters/sec or as fast as 120 meters/sec. 

9. The brain itself cannot feel pain. While the brain might be the pain center when you cut your finger or burn yourself, the brain itself does not have pain receptors and cannot feel pain. That doesn't mean your head can’t hurt. The brain is surrounded by loads of tissues, nerves and blood vessels that are plenty receptive to pain and can give you a pounding headache. 

10. 80% of the brain is water. Your brain isn't the firm, gray mass you've seen on TV. Living brain tissue is a squishy, pink and jelly-like organ thanks to the loads of blood and high water content of the tissue. So the next time you’re feeling dehydrated get a drink to keep your brain hydrated. 

Posted on 1:30 AM by Unknown

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