Wednesday, December 14, 2011
The challenge of peak performance is to manage your physical, emotional, mental and spiritual energy. A long time ago, I thought you had only to manage physical energy to be highly productive, for example such as consuming some nutritious calories. But I was wrong.
Have a think for a minute. Despite having lots of calories have you ever felt low in energy? Or are there times when you seemed to have lots of energy and someone gives you a job you really don’t want to do, maybe your income tax and all of a sudden your energy disappears? Or you may recall a time when you had lots of energy but what you were doing went against your values or maybe someone raised an emotional issue that seemed to drain you. Your emotional or psychological energy is a product of your motivation. If our hearts aren’t in it we simply cannot raise our energy. Lack of passion ultimately affects energy. Have you ever noticed how much energy you have for a project depends upon your passion for the project? Have you experienced how tiring it becomes when you are doing something that you don’t want to do? For me it is marking exam papers. It puts me to sleep. However, writing my chapters and books really excites me so I have a lot more energy for it. In fact a whole day can disappear and I might not even notice it once I am writing. Sound familiar?
Stress and procrastination are great energy drains despite the fact that they do not manifest in the physical realm. That is why we need to build our energy reserves in the physical, emotional, mental and spiritual realms. “Spiritual” does not have to mean religious; I take it to mean consistent with your own higher values.
There are many blocks to increasing personal, professional and business productivity, including procrastination, lack of vision, being too busy, having no motivation or direction, stress and more. However, these all stem for two major areas: the way we think and our energy management. In a very simplistic way the level of energy we have and the way we think influence all our behaviour and are therefore at the root of all our problems and solutions.
We develop a personal energy crisis where our physical, emotional, psychological (mental) and spiritual batteries are totally depleted and at the end of each day we feel frustrated and exhausted, leading to a negative, spiralling problem of communication breakdown and conflict.
A simple formula for peak productivity is:
Productivity = Energy + Motivation and Direction
So how do you achieve productivity? First understand that your physical energy is simply a product of many aspects of your life, including your nutrition. Athletes use many strategies to achieve peak performance. Top athletes use more of them and focus on them more because top athletes cannot afford to make too many mistakes. Businesses also cannot afford to make too many mistakes. Individuals work long hard hours but don’t use any of these techniques. The performance demands of most professionals outstrip those of most professional athletes. Athletes have a professional career of five to 10 years if they’re lucky.
Thursday, December 8, 2011
A recent independent scientific report cautions women to avoid BPA to minimize their chances of breast cancer. The study said there was a "biological plausibility" that BPA is linked to breast cancer. Scientists can see a mechanism in animals by which certain substances, including BPA, might cause breast cancer, but there is not enough information to assess the risk in humans, the study said.
BPA is a harmful organic chemical compound which is used in the manufacture of polycarbonate plastics and epoxy resins. It is an environmental contaminant that disrupts reproductive processes through changing hormonal systems in the body. The effects of BPA have been studied on humans, however, There has been increased awareness of the health related risks to BPA exposure, due to recent research into its environmental distribution and its detection in humans. A recent US study found 91% have traces of BPA.
The main source of human exposure is from food and drink that has been in contact with materials containing BPA such as plastic food and drink containers. Food and beverage containers and culinary utensils are manufactured from polycarbonate plastics and epoxy resins. These resins are used as linings for metal products including bottletops, food cans and water supply pipes.
Studies have suggested that BPA is associated with a number of serious health effects including; causing cancer, cardiovascular disease, diabetes and also reproductive abnormalities. BPA is also known as an endocrine disruptor, which can interfere with reproduction and development. Fetuses, infants and children are usually more susceptible than adults, due to their fast developmental stages. There is a considerable amount of evidence now that exposure to certain environmental factors in early stages of development promote the risk of numerous chronic diseases in adulthood. Research has recently highlighted the estrogen‑like and carcinogenic adverse effects of BPA and there have been increased incidences of accelerated growth and puberty linked to BPA exposure.
One of the studies carried out on the effects of BPA exposure on pregnant women and the fetus which showed BPA caused prenatal and or postnatal reproductive issues. The ability for a fetal liver to detoxify BPA is much less than that of an adult. However, studies have also shown that 8PA increases infant bodyweight due to its estrogen‑like effects. It has been recorded that there is a link between serum BPA levels and recurring miscarriage. In one study patients with a history of three of consecutive first trimester miscarriages had blood BPA levels of around three times higher than the control group with no history of miscarriage or infertility.
Monday, December 5, 2011
Lead is the most widely used heavy metal and a deadly toxin that has become widespread in our modern world. Lead is a neurotoxin with a long history of causing damage to the human brain, from Roman times due to lead (Pb –Latin name plumbum) in drinking vessels, through eighteenth century ‘Devonshire colic’ where cider was poisoned with lead in its manufacture, to present day occupational exposure in the lead additive and battery manufacturing industry. Some historians put the demise of the Roman empire down to the high levels of lead in the aristocracy of Rome which may have contributed to madness such as Nero playing the fiddle as Rome burnt. Before the Industrial Revolution lead poisoning commonly occurred due to adulterated food or wine, or from occupational hazards such as mining or smelting.
Naturally lead is slowly released into the environment through the weathering of rocks, igneous (volcanic) activity and through radioactive decay of naturally occurring radon gas to form the isotope 210Pb. It is a heavy pliable and resistant to corrosion and weathering. These characteristics, as well as its plentiful and accessible supply and ease to smelt, have enabled humans to use it for thousands of years. Some lead artifacts have been dated back to 6500 BC. The Romans produced approximately 80,000 tons of lead annually and were known to increase the environmental lead approximately five times the background level, and as far back as 4,500 years ago in South East Asia, when methods of smelting for lead sulphide ores and cupellation of silver were developed, widespread atmospheric lead contamination occurred.
Lead is the only heavy metal whose open-ocean concentration has been measurably influenced by civilisation. The lead content of the open ocean (Mediterranean and Pacific) has increased 3 to 5 times since the introduction of lead-based gasoline additives and 10 times since pre-industrial times. The significance of these increases in global lead concentration is very difficult to assess. There is a growing concentration of lead found in the tissues of fish, especially shell fish, and in other food, but the effect on global ecosystem processes would be nearly impossible to assess as there are huge problems in determining what is ‘normal’ when the global ecosystem is now relatively drenched in lead compared with pre-industrial times. The extent of global lead is best seen in the fact that an emission product has been diluted into the open oceans and increased in concentration dramatically, yet most lead emissions do not normally reach the oceans but are deposited on the land, particularly in cities where most of us live.
Traditional uses of lead have included building, plumbing, printing, fishing, shooting and uses as weights with the additional present day use in radiation and electrical insulation, battery manufacture with various compounds of lead being used in paints, plastics, ceramics, glass and unfortunately petrol. Historically there have been three major sources of exposure of large populations to lead. Lead paint in older homes, lead in products like jewelry and crystal and lead added to petrol.
While lead was slowly removed from petrol over 25 years, it will remain as an environmental contaminant in the form of fine dust for many more decades and the controversy around it will last even longer. Lead was added to petrol as tetra ethyl and tetra methyl lead (two highly toxic forms) primarily to boost octane ratings. Lead was emitted to the atmosphere from motor vehicle exhausts as volatile lead compounds, unburnt tetra-ethyl lead and as particulates such as lead oxide. Around 70% of these particles are less than 0.1 micron in size which are easily dispersed over large distances and the size most dangerous to human health. Particles below 0.1 micron in size can pass into the lower parts of the lungs where they do most damage.
Automotive exhausts were the major contributors to lead emissions in most cities around the world, although other sources include paint and factory emissions. In the USA it is estimated that between 90 and 98 per cent of total lead emissions are from car exhausts and in Australia it has been estimated that about 98% of lead emissions came from lead in petrol, though the lead added to petrol only represented 14% of total lead usage.
Australia was one of the last developed countries to remove lead from petrol (almost 20 years after the USA). This was despite the toxic effects of lead being known as far back as the 1950s. Leaded petrol was phased out in Australia between 1986 and 2002. Australia has an influential lead industry (the largest lead mines in the world) that fought tooth and nail alongside the petrol industry and certain government departments to keep the lead in petrol. Shamefully, the health of the average person is usually not a consideration when weighed against the “health” of the economy when large amounts of money are at stake. The result of this reluctance to act means that even still many more Australians now have elevated levels of lead in their bodies and many children have been unnecessarily exposed to this toxic metal.
Although the amount of lead has decreased in road dust and soil lead is still found as a contaminant in the dust in our homes, usually near the entrance where it is brought in on people’s shoes. This contaminated dust will accumulate in carpets, where the possibility of it being ingested or being transferred to the skin is increased, especially if the dust particles are stirred. When we studied the amounts of lead in carpets we found the highest levels near the front door. The closer the house was to a busy road or a petrol station, the higher the level of lead.
Lead can cause very serious health problems, including damage to the nervous system, leading to behavioural changes and a decreased mental ability, inhibition of enzymes, interference with the growing foetus, colic, anaemia and kidney damage. Infants and young children are the groups most susceptible to lead exposure. Even at low levels, lead poisoning in children can cause significant IQ deficiencies, reading and learning disabilities, impaired hearing, reduced attention spans and hyperactivity and other behaviour problems. A lot like ADHD symptoms. Pregnant women poisoned by lead can transfer lead to the developing foetus, resulting in adverse developmental effects including increased levels of spontaneous abortion and still-born babies. One study found a strong correlation with prenatal lead exposure and violent offences and arrests later in life and lead exposure in utero will result in poor intellect in children, especially when exposed around 28 weeks of gestation when development is most crucial.
Schizophrenia has also been associated with exposure to lead in the foetus. In one study mothers with high‑lead blood samples were more than twice as likely to have children who later became schizophrenic. As a result they estimate that up to a quarter of the schizophrenia that developed in American urban centres in the 1950s and 1960s could be traced to lead pollution in the womb. Maybe the levels in Australia were even higher as a result of our lax controls.
Another sensitive issue is what levels of lead in the body are safe for kids. According to the grandfather of lead research Dr Needleman, ‘none’. Needleman had done literally decades of work on the toxic effects of lead on kids and had concluded there is no safe level and children are the most vulnerable to its toxic effects. However, as a result of the powerful lead industry the levels of lead acceptable in the blood were around 35ug/dl of blood. In the mid 80’s it was reduced to 25, then to 10 and now levels of 5 ug/dl or above are considered not acceptable. In one situation I was involved in however, the government officials tried to argue the child did not have a problem because the levels were 4.9 ug/dl. Clearly they were very good at reading numbers but not at understanding the effects of toxic chemicals such as lead and how standards should be used including how lead levels fluctuate in the blood and the effects of lead accumulation in the body.
Dust from lead-based paints continues to pose a health problem. Although these paints were banned from indoor use decades ago, people with older homes are still being exposed to lead dust, another legacy of complacent governments. More than 80 percent of homes built before 1978 contain lead paint. It was the primary component (up to 40 percent) of white paint in Australia until the 1960s. In homes built before 1950, white lead-based paints were used as undercoats on interior and exterior timbers and walls and as a prime coat for troweled lath and plaster walls and cement rendered surfaces. One study estimated that 38 million houses in the US had lead-based paint on their walls. How many in Australia? Since then, modern paints have turned from using lead based to titanium dioxide and latex products. Unfortunately lead based paints are still used in many developing countries.
Small quantities of dust are continually produced from lead paint, settling on indoor surfaces. During periods of home renovation, there is an increase in the number of cases of lead poisoning reported. Researchers have found the household dust of recently renovated homes contains lead levels of 12,600 mg/m2. This is thousands of times higher than the normal background level. In a recent incident, a family keen to renovate an older house was assured that the old paint on the outside of their home was not lead based. At the end of the first day of paint stripping, there was a layer of fine paint dust inside the home and in the new baby’s room. Fortunately the mother listened to her intuition and had the dust tested. It was laden with lead. In this case the family acted quickly to avert potentially grave health problems. It is essential to have paint tested before you remove it if you think there may be any possibility of it being lead based. This is simple and inexpensive as the test kits are available from any reputable hardware or paint shop. Don’t assume it will be fine. It is essential to test it and be sure. The best thing to do with most lead painted surfaces is to just paint over it. It will not be released with a few extra coats of paint over it.
Another concern is the use of lead in common consumer items. In particular the use of lead paint or contamination of children’s products and toys with lead. There is growing evidence and concern over the unregulated products coming into Australia from Asia. Many are made from cheaper metals and paints and may be contaminated or even used heavy metals such as lead and cadmium in their production. I have found jewelry with high concentrations of both lead and cadmium.
Ironically we add lead oxide to the molten glass to form lead crystal. The lead leaches out into liquids fairly rapidly but increases with alcoholic content and acidity. The longer the wine or drink is left in the crystal the higher the concentrations but it only takes a few minutes for the lead to begin leaching into the crystal. Lead may also be a lesser component of pewter but the same principles will apply for it migrating into foods and drink as crystal.
Lead also makes its way into cosmetics, particularly, hair dyes, eye shadow and lipsticks. Metal salts dyes, most commonly lead and bismuth (another toxic metal) salts, are used to create a reaction to dye the hair. Metal salts gradually darken the hair over time and are used in black-brown colours. Strangely lead salts have been approved as safe for use as hair dyes in the low concentrations. Remember, there is no safe level of lead, but for beauty’s sake it seems ok?
Lead in drinking water is not a new phenomenon as lead was historically used to make water pipes and has even been contributed to be a factor of the Roman Empire's demise. Although lead pipes are no longer produced, some older homes may still contain lead pipes and thus contaminate the drinking water. Lead in tap water may also increase due to leaching of lead-bearing materials such as solders.
Lead has also been found to accumulate in the soil of orchards where crop sprays containing lead compounds have been used such as apple and pear orchards sprayed with lead arsenate. The concern here is the encroaching urban sprawl as we build new homes on old horticultural or old industrial areas without anyone being the wiser on what is in the soils.
Whilst we have become smarter when dealing with lead, and it no longer affects our IQ, the possibility of future contamination still lingers as long as we accept it in our products. No level of lead, mercury or cadmium is acceptable, and therefore the only acceptable solution is to remove them from all environmental, household and personal care products.