Just one more item to add to the list of why you want to avoid drinking coffee. Now it is clear that caffeine will worsen insulin sensitivity, which is one of the major causes of chronic illness.

This study has forced me to rethink my position on coffee, causing me to shift coffee from a relatively safe drink to one that needs to be avoided.

Coffee is one of the most heavily sprayed crops with plenty of toxic pesticide residues present on the beans. Even if you get organic coffee you will likely still have to contend with the dioxins on most coffee filter paper and the chlorine and fluorine in most water used to make it.

Other studies have shown that caffeine leads to a loss of aortic elasticity, and raises blood pressure.

Caffeine is the most widely used drug in the world. While I believe that coffee and caffeine are far less dangerous than fruit juice or soda, it is still wise to limit, and if possible, eliminate its use.

This is becoming increasingly clear for women, as coffee should NEVER be consumed during pregnancy. It also appears that coffee consumption is associated with increased estrogen levels, which means an increase for breast and endometrial cancer.

Coffee has been previously associated with increased risk of stroke and rheumatoid arthritis.

One can use a product called Water Joe that is basically bottled water with caffeine added to help you wean off of the coffee. If you stop coffee cold turkey you will likely develop a severe headache from going through caffeine withdrawal.

If you simply MUST drink coffee here are a few tips to help reduce the chances of harmful effects:

• Use organic coffee - Coffee is a heavily sprayed crop, so drinking organic coffee might reduce or eliminate the exposure to toxic herbicides, pesticides, and fertilizers. The only drawback is that the countries where coffee is produced probably have less control and monitoring for compliance to organic practices. You will also be helping to protect the health of the people working in the coffee fields, as you will be helping to reduce their toxic exposure as well.

• "Swiss Water Process" decaf - If you are going to drink decaffeinated coffee, be sure that it is one that uses a non-chemical based method of decaffeination. The "Swiss Water Process" is a patented method and is the best choice. Most of the major brands are chemically decaffeinated, even if it says "Naturally Decaffeinated" right on the container. If you are unsure of the methods, contact the manufacturer.

• Avoid sugar and/or milk - These are actually much worse for you than the coffee itself. Don't compound the detrimental health effects by adding milk or sugar to your coffee.

• Unbleached filters - If you use a "drip" coffee maker, be sure to use non-bleached filters. The bright white ones, which most people use, are chlorine bleached and some of this chlorine will be extracted from the filter during the brewing process.

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