Did you know?
Blood is approximately twice as thick as water because of the cells and other components found in it.
Did you know?
Illicit drug use costs the United States approximately $181 billion every year.
Did you know?
People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.
Did you know?
Limit intake of red meat and dairy products made with whole milk. Choose skim milk, low-fat or fat-free dairy products. Limit fried food. Use healthy oils when cooking.
Did you know?
The modern decimal position system was the invention of the Hindus (around 800 AD), involving the placing of numerals to indicate their value (units, tens, hundreds, and so on).
The human skeleton
Past Human
Commensal Bacteria in the Human Small Intestine
Opener A human X chromosome highlighted using fluorescence in situ hybridization