Dr. Mercola’s Weekly Quiz

1 What is the No. 1 supplement recommended by cardiologists for all patients?

  • Vitamin D
  • Magnesium
  • Selenium
  • CoQ10

    CoQ10 helps protect your mitochondrial membranes from oxidative damage and has been shown to be helpful for a number of health conditions rooted in mitochondrial dysfunction. Learn more.

2 Chlorpyrifos is a deadly organophosphate insecticide found in 87 percent of newborns. Which of the following health problems is NOT associated with its exposure:

  • Lung cancer
  • Reduced IQ
  • Diabetes

    Chlorpyrifos is an organophosphate insecticide known to disrupt brain development in children, and has been linked to lung cancer and Parkinson's disease in adults. Non-organic foods are a major source of exposure. Learn more.

  • Parkinson's disease

3 The U.S. has a massive drug addiction problem. Before switching to heroin, 80 percent of addicts report starting out on:

  • Over-the-counter pain pills
  • Opioid painkillers

    The massive increase in opioid sales has been blamed on an orchestrated marketing plan aimed at misinforming doctors about the addictive potential of these drugs. Learn more.

  • Statins
  • Antidepressants

4 Which of the following strategies is not a good way to strengthen your sense of gratitude?

  • Saying grace at each meal
  • Expressing gratitude for useless or insignificant things
  • Smiling and giving hugs
  • Focusing on how you've benefited from another person's actions

    According to psychologists, the practice of openly sharing what you're grateful for is a ritual that fosters both happiness and health. Learn more.

5 Research suggests the following attitude can help you live a happier, healthier and longer life:

  • Sentimentality
  • Gratitude

    One way to harness the positive power of gratitude is to keep a gratitude journal, where you actively write down what you're grateful for each day. Learn more.

  • Empathy
  • Sympathy

6 Alma Deutscher is the musical prodigy many believe is more gifted than Mozart. How old was she when she premiered her first, full-length opera?

  • 6
  • 9
  • 10
  • 11

    Alma is frequently compared to Wolfgang Amadeus Mozart, but Alma insists she would rather be the first Alma than the second Mozart. Learn more.

7 There are several ways to improve mitochondrial function and physical health. The most powerful intervention appears to be:

  • Cyclical ketogenesis
  • Fasting

    Water fasting provides many benefits, from mental clarity to radically improving your body's ability to regenerate and increase healing stem cells. Learn more.

  • Running or other endurance exercises
  • Cold thermogenesis