Did you know?
The familiar sounds of your heart are made by the heart's valves as they open and close.
Did you know?
Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.
Did you know?
The lipid bilayer is made of phospholipids. They are arranged in a double layer because one of their ends is attracted to water while the other is repelled by water.
Did you know?
When Gabriel Fahrenheit invented the first mercury thermometer, he called "zero degrees" the lowest temperature he was able to attain with a mixture of ice and salt. For the upper point of his scale, he used 96°, which he measured as normal human body temperature (we know it to be 98.6° today because of more accurate thermometers).
Did you know?
Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.
Milestones of Infant Language Development
Observed Mother–Child Arguments at Five Time Points Over an Eight-Year Period
Conservation biology arose in response to biodiversity loss
American people aren't the only ones getting bigger—American pets are also putting on pounds
The average weight gain between Thanksgiving and New Year's Day is about a pound