Think you know all there is to know about health?  Be careful because you may be the victim of a health myth or two.  See which ones you’ve fallen for, and impress your friends by revealing the origin and the reality behind some of the most common health misconceptions out there.

• Drink at least 8 glasses of water a day
• Fresh fruits and veggies are best
• We only use 10% of our brains
• Seven years to digest gum
• Eggs raise cholesterol
• Chocolate causes acne
• Eating carrots improves eyesight
• Poisoned Halloween candy a threat
• Oatmeal can lower your blood pressure
• Sugar causes hyperactivity in kids
• Spinach makes you extra strong
• Shaving hair causes it to grow back darker, courser and faster
• Feeling pain means an effective workout
• Turkey makes you sleepy
• Hair and fingernails grow after death
• Reading in dim light ruins eyesight
• Eating late makes you gain weight
• Cold weather makes you sick
• Milk makes you phlegmy
• Ok to double dip chips
• Five-second rule
• Sweat measures workout quality