Causes of Varicose Veins, Definitely Not Crossing Legs

I remember when I was younger, I was kept being told by parents and also friends, not to cross legs after exercising or after a long walk, as this can cause varicose veins. I didn't know how true that was, but I just followed their advice anyway. Oh well, until I read on this health article. Crossing legs does not cause or exacerbate varicose veins.

What is varicose veins? These are veins with weakened walls, which cause them to bulge above our skin surface. And this damage to the wall affects the vein's job of returning blood circulation to our heart. Varicose veins can cause itching, pains, and sometimes eczema and ulcers.

According to Dr Ken Myers, a Melbourne vein expert, crossing legs does not affect the risks of varicose veins or even spider veins (smaller veins). It does not make the varicose veins any worse either.

A study was conducted to look at the risk factors for varicose veins conditions, and none points to crossing legs.

One of the causes of varicose veins is genetics. But many other causes remains unknown yet. An increased pressure in veins is not a cause, according to this study. The study also dismiss the previous beliefs that varicose veins was caused by the backwards pressure of blood in the veins, blowing them up like a balloon. The study concluded that when the damage to the veins is already done, then the back pressure can become a factor, thus is not the initial cause of varicose veins.

Below is the list of myths that was believed to worsen varicose veins:

• Crossing legs, as the pressure in veins is minimal, thus this habit does not worsen the existing condition


• Smoking


• Having high blood pressure


• Wearing heels

The known factors to cause varicose veins condition to worsen is:

• Standing for long period, as it increases pressure on veins and worsen the condition slightly


• Pregnancy, probably due to hormonal changes


• Obesity, no known reason why this worsen the condition

Treatment for varicose veins involving closing off the affected veins by removing and/or letting it absorbed by the body. This can be done by means of surgical or non-surgical. This procedure does not harm circulation because other veins can take over the job of veins that no longer carry blood. But this does not guarantee that other veins will not be affected by varicose veins.

What you can do in the meantime is to wear support stockings, as this reduces swelling nd discomfort. Especially for my preggar friends, do wear support stockings (as your gynae might have suggested to you already)!

Starving Yourself To Prevent Jet Lag

If you often find yourself have jet lag after long-haul flights, thank God there is something you can do now to prevent jet lag.

The trick is to starve yourself before your long haul flight. As easy as that! This is due to body's natural circadian clock in our brain dictates when to wake up, eat, and sleep. These are all in response to light.

But a study by Harvard Medical School has shown that mammals have a second body clock. This second body clock takes over from primary circadian clock when they starve. A period of 16 hours of starving is enough to engage in this second body clock. So, do not eat any plane food, and only eat once u land. This could help you avoid the jet lag. Although this study has not been proven to work in human, this worth a try.

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Reference:
Journal Science: http://www.sciencemag.org/

The Making of Fingerprints

As what I understand from reading several pregnancy books, fingerprints are formed during fetal development, when fetus is swimming in the amniotic fluid. That is why there is no identical fingerprints, not even in identical twins.

What get me to think though, why the prints are only formed in the fingers? and not other part of our skin?

In an explanation by anatomist Professor Ian Gibbins from Flinders University, the first signs of patterns on the fingers, palms and soles of the feet appear about 11 to 12 weeks after fertilisation, and the entire pattern of skin ridges is established by early in the fifth month of fetal life.

According to him, fingerprints are not formed by the ebbing and flowing of amniotic fluid. During early fetal development tissue on the fingers, palms and soles of the feet swells to form what are known as volar pads. These volar pads stop to grow when hands and feet continue to grow. As a result, the pads are reabsorbed back into the hand or foot. In this period, the interactions between our outer layer of the skin (epidermis) and the deep layer (dermis) results in ridges on the fingertips and toes. The timing of this process determines whether your dominant fingerprint ridge pattern is a whorl, loop or an arch.

There are complex and subtle genetic codes that produce factors determining which types of things will develop where. Take for instance, skin on our eyelids has different surface patterns than in our hands, different hair types grow on different part of our body, the number of sweat glands vary over our body and between different people. And this explains why fingerprints are only formed on our fingers, as we have differences in the structure of the skin all over our body.

In fact, fingerprints have a very high density of sensory nerve endings, which we use to judge the texture and shape of the objects we touch.