Ways You May Be Harming Your Liver Without Even Knowing It

Don’t Rely On Advil

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KAREN BLEIER/AFP via Getty Images
KAREN BLEIER/AFP via Getty Images

According to a study in the New England Journal of Medicine, heavy use of pain relievers like Tylenol results in 5,000 cases of kidney failure in the U.S. each year. But how much is too much? Researchers noted that the most dangerous time to take painkillers is after fasting. If you take pain relievers with food occasionally for a headache, you should be fine.

According to Stanford medical professor Dr. Grant Lipman, pain relievers decrease the blood flow to your kidneys. Over time, this could cause your kidneys some serious strain. Dr. Lipman says that one in five marathon runners will develop the risk of kidney damage.