50 Surprising Facts You Never Knew About Gold

By InvestingAnswers Staff

1. The word "gold" comes from the Old English word "geolu," meaning yellow.

2. There is more steel created per hour than there has been gold dug up throughout history.

3. Around 161,000 tons of gold have been mined by humans.

4. Gold can be found beneath the earth on all seven continents.

5. It is believed that around 80% of earth's gold is still buried underground.

6. There is an estimated total of 10 billion tons of gold in the world's oceans. That is 25 tons of gold for every cubic mile of seawater.

Top Five Airborne Threats to Senior Health

Senior citizens have their share of concerns these days, but perhaps the single most important issue they face is health care. With the baby boomer generation reaching retirement age and sweeping changes being proposed for pensions, retirement funding, and health care services, now more than ever senior citizens need to educate themselves on the unique factors affecting their health. One such consideration is indoor air quality (IAQ). Although air quality sometimes takes a back seat to other potential health hazards, experts contend that seniors should be especially concerned about the air they breathe. This article will examine five of the biggest influences on indoor air quality for seniors.

The subjects discussed below are not ranked in order of importance. Some factors will affect seniors more than others depending on the specifics of each individual situation. In fact, smoking is commonly regarded as the number one air quality issue for seniors. The health effects of tobacco smoke are of course well documented. The five concerns below are air quality issues that may be less understood by seniors and the general public. Always contact your regular health care provider if you feel that you are experiencing symptoms from poor IAQ.