Modern Life Conveniences Causing Damage to Our Health?

Life styles of human being have changed hugely over the past two centuries. This started about two hundred years ago with industrial revolution. Use of oil and energy created another big change because these changed the pace of life fto very fast. These changes provided a lot of conveniences and luxuries but they have also changed our eating habits, which has adversely affected our health because our genes have been used to what our ancestors were used to for thousands of years. These conveniences have caused unintended consequences because of sedentary life style hence increasing risks to human health.

Let us see some of the changes that have damaged our health:

Over Abundance of Calories and Carbohydrates:
Few thousand years ago our ancestors lived on hunted food and gathered wild plants vegetables. This consisted mostly of protein and fat. Agricultural revolution brought us abundance of carbohydrate in our diet. High fructose corn syrup was added only 50 years ago. This is causing increased disease load in people with diabetes, obesity and metabolic syndrome.

Lack of Exercises:
Cars and means of communications are added to our lives just about 100 years ago. Fastest means of transport was horse or camel until then. Now we have become sedentary and non-active with cars and airplanes. Remote-controls fax and internet has made us even worse. Our daily walking used lot of calories in past, which has disappeared and those who are conscious of it now need gyms to work out.

Lack of sunshine and Vitamin D:
With facilities of air conditioning and fast transport our exposure to sun has been severely curtailed. In developed world a substantial percentage of us are hence Vitamin D deficient. This is causing a number of illnesses like depression, Alzheimer’s and cancers. Pundits say that Vitamin D is not only a vitamin but an enzyme that works on every cell of the body.

Radiation:
Our experimentation with radiation is also only about a century old when we started finding the radioactive isotopes. Our experience of radiation started with bombing of Japan in WWII and then three accidents in nuclear reactors since then. With such minimal experience we are thinking to embark on having major part of our need of electricity with nuclear power plants, which is frightening.

Genetically Modified (GM) foods:
We have embarked on this without enough experience and we do not know how it may hurt us. We need to know its long term implications before it is allowed universally.

Hormone supported animal rearing:
Major part of our meat and chicken now comes from farms where hormones and unknown chemical feed stocks are used to fatten the birds and animals. These substances are consumed by us every day with our food.

Chemicals and fertilizers:
These are now major industries to provide us food. The chemicals in the form of fertilizers and pesticides are ingested by us with our food on daily basis. Aside from that the chemicals produced in industries as by-products are disposed in water channels eventually consumed by humans through fish meals.

Possible ways to avoid damage to our health:

1. We should avoid excessive calories and carbohydrate to avoid diseases.
2. We all need to exercise regularly to keep fit, burn calories and avoid insulin resistance.
3. We need to make our own natural Vitamin D by exposing ourselves to sunlight for a few hours a day.
4. It is wrong to allow something in our food like GM foods, about which we do not know enough. We must discourage its use until we are sure.
5. Natural and synthetic chemicals are growing in number by millions. We should restrict use of unknown chemicals and of those known to hurt.
6. Radiation is a new issue from last century. We have accepted its use despite that we know it causes cancer. We need to have more information about it.

UNINTENDED CONSEQUENCES OF MODERN LIVING

Importance of Vitamin D and its deficiency

In the past two hundred years with Industrial revolution following the agricultural revolution, we are becoming indoor people. We work in offices, factories or homes. With availability of air-conditioning we have become too soft and cannot stand sun or heat. This has further reduced our exposure to sun. It is a matter of recent knowledge that Vit D is formed in skin when it is exposed to ultraviolet rays of sun light. We are inadvertently losing this nature’s bounty because of which we are being hurt by many diseases.

As we know more about Vitamin D, it is becoming more apparent that this is more than a simple vitamin that we did not care much about until recently. Newfound additional knowledge Vit D is changing our respect towards Vit D. However, at the same time the modern life style that we are pursuing is inadvertently causing us Vit D deficient or insufficient resulting in many health issues. Let us see how this has happened?

Vit D was the fourth vitamin accidentally found early last century, after discovery of Vit A, B and C and hence it was named fourth in the alphabetical list. Vitamins are defined as “vital chemicals needed to complete metabolic and chemical processes beneficial to the body functions” and hence they are called Vitamins. These are not made within our body and hence have to come with our intake of food.

Similar vital chemicals “produced in the body” are called hormones, like in thyroid gland, pituitary gland, parathyroid, adrenaline glands etc. It was not realized in early days that Vit D is also produced in the skin and it is also a hormone. It's importance was not all that felt because it's production in skin while it is exposed to sun light containing ultraviolet rays B (UV B) was almost given because our life styles until century almost made it necessary for almost everyone to remain exposed to sunlight for certain part of the day. And that was just enough to produce necessary quantity of Vit D for our body functions.

With Industrial revolution more and more people started working indoors and exposure to sunlight reduced. Additionally, with the advent if air conditioning, staying away from heat of sun became more of an available comfort and people became habituated to stay away from sun. Now we also know that UV B do not pass through glass and hence if we are sitting in air conditioned space covered by glass windows, the skin is not exposed to the beneficial UV B and Vit D is not produced. It is estimated that we need about two hours exposure to mid-day sun to produce enough Vit D we need. In present day working in developed countries such a long exposure in hot sun has become either impossible or intolerable. Then the choice is to have Vit D supplements.

Vit D ids fat soluble. Fish is best source of Vit D. Eggs and beef also contains some Vit D. It is almost absent in vegetables. Vit D exists in two forms, I.e. Vit D2 and D3. Its daily need in body is minute and the presence of Vit din blood is measured in ng/ml of blood. One nanogram is one billionth of a gram. Its deficiency was not all that common except in Rickets, hence health professionals did not attach all that much importance to it.

We need to take care of our Vit D levels because of following reasons:

·       Because of more indoor living in air conditioned spaces, the Vit D deficiency seems to be on an increase.

·       As our knowledge about many prevalent conditions like Diabetes, Obesity, cardiovascular and Heart diseases, Depression, Alzheimer’s and Cancers etc is increasing, there is more and more evidence available that this Hormone/  Vitamin works at cellular levels. It is directly or indirectly affecting several thousand genes of our body. Some workers even connect Vit D with Multiple Sclerosis, ADD and many other conditions.

·       Our knowledge of minimum levels necessary of Vit D is also not firmly agreed upon by all the concerned pundits. For example recently in November 2010, Institute of Medicine (IOM) has almost doubled the Recommended Daily Allowance (RDA) to be taken as supplements because more number of Americans and Canadians seem to be Vit D deficient.

·       Until recently, <19 ng/ml was considered to be deficiency, and 19 to 29 ng/ml was considered to be insufficient. Those who swear by this Vitamin insist that probably 50 to 70 ng/ml is a satisfactory level, with 50 as optimal.

·       They also dispute strongly with the recent RDA from IOM and say that RDA should be 2000 to 5000 IU daily for an average person who does not get enough exposure to sunlight every day. And because our exposure to sun light and UV B is drastically reduced because of our newly adopted life style, it is estimated that a substantial majority of North American population is Vit D deficient.

·       Yet another recent awareness is that if we live around equator, we get sun light at a better angle and if we are away in North or South latitudes on planet earth, our exposure to sun light is reduced and we need higher RDA.

·       Another new understanding is that the angle at which these rays fall on skin is also important. That is, if we are exposed to sun in morning or evening the angle is too small for UV B to produce Vit D. If our skin is exposed to sun at or around mid day the angle is better to produce more Vit D.

·       Yet another surprise revelation is that even mildest usage of sunscreen reduces the UV B penetration in skin and hence production of Vit D is small to none.

With all the above scientific facts that have emerged and that we know that we have adopted a different life style than what our ancestors used to live in sometime about a hundred years ago, it is a matter of God given common sense and wisdom that needs to be applied. A measure needs to be adopted to ensure that we maintain an optimal level of Vit D in our body by doing the following:

1.     Get ourselves tested for Vit D levels and try and keep it at above 50 ng/ ml.

2.     Get the appropriate diet supplement to achieve the above.

3.     It would be best to get enough exposure to sun light every day.

By taking those measures we can keep ourselves insulated from many diseases that are plaguing our citizens and incidence of such diseases is continuously becoming higher.