Two new studies reveal a link between health problems and very low levels of exposure to toxic chemicals. One study found a link between exposure to Bisphenol-A, which is found in some plastic drinking bottles and food cans, can promote prostate cancer. Another study revealed tiny amounts of pesticides (found, of course, in non-organic foods) can trigger allergies, including asthma. Take action: Avoid drinking out of polycarbonate plastic "sports" bottles and avoid canned foods (fresh is better tasting, and better for you anyway). And choose organic whenever you can!