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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).

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For about 100 years, scientists thought that peptic ulcers were caused by stress, spicy food, and alcohol. Later, researchers added stomach acid to the list of causes and began treating ulcers with antacids. Now it is known that peptic ulcers are predominantly caused by Helicobacter pylori, a spiral-shaped bacterium that normally exist in the stomach.

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The average human gut is home to perhaps 500 to 1,000 different species of bacteria.

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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.

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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Stones create distinctive microclimates Stones create distinctive microclimates
Computed tomography (CT) uses X-rays to create a CT scan of the brain. Computed tomography (CT) uses X-rays to create a CT scan of the brain.
Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight. Overhead stretch for the shoulder muscles. Lean back to create the stretch using your body weight.
Scissoring motion to create movement between the metacarpals of the hand. Scissoring motion to create movement between the metacarpals of the hand.
Create a map that integrates the following terms: alternative splicing, constitu Create a map that integrates the following terms: alternative splicing, constitu
Connecting blunt ends to create recombinant DNA molecules Connecting blunt ends to create recombinant DNA molecules
Video: Homeostasis (range of body conditions, normal limits, mild stresses & severe stresses)

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