2 mins read

Excessive Blinking in Children

Blinking is an involuntary act designed to clean the cornea and keep the eye moist by keeping tears evenly distributed. Children blink an average of 12 to 20 times per minute. Several factors contribute to excessive blinking, including stress, habit, brain damage and medical disorders. Treatment of excessive blinking depends on the cause.

3 mins read

How Long Does a Positive Result Last on a Home Pregnancy Test?

Not all home pregnancy tests have the same level of sensitivity to hCG (human chorionic gonadotropin), the pregnancy hormone, so some will show a positive result early in a woman’s pregnancy, and some won’t register positive until up to a week after a missed period. What the majority of tests do have in common is that positive results doesn’t always last long enough to show off to friends and relatives. That doesn’t mean you’re not pregnant, just that the type of test you took is subject to a time limit for reading the results.