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Did you know?

Approximately 15–25% of recognized pregnancies end in miscarriage. However, many miscarriages often occur before a woman even knows she is pregnant.

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Women are two-thirds more likely than men to develop irritable bowel syndrome. This may be attributable to hormonal changes related to their menstrual cycles.

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According to the American College of Allergy, Asthma & Immunology, more than 50 million Americans have some kind of food allergy. Food allergies affect between 4 and 6% of children, and 4% of adults, according to the CDC. The most common food allergies include shellfish, peanuts, walnuts, fish, eggs, milk, and soy.

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The largest baby ever born weighed more than 23 pounds but died just 11 hours after his birth in 1879. The largest surviving baby was born in October 2009 in Sumatra, Indonesia, and weighed an astounding 19.2 pounds at birth.

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Essential fatty acids have been shown to be effective against ulcers, asthma, dental cavities, and skin disorders such as acne.

Effect of pH on oxygen binding to hemoglobin Effect of pH on oxygen binding to hemoglobin
The oxygen sensor provides a quick response at the stoichiometric air–fuel ratio of 14.7:1. The oxygen sensor provides a quick response at the stoichiometric air–fuel ratio of 14.7:1.
Metals reacting with oxidized oxygen Metals reacting with oxidized oxygen
Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions Hill plots of oxygen binding for myoglobin and hemoglobin under physiological conditions
Oxygen Transport: Hemoglobin Oxygen Transport: Hemoglobin
Video: Functional zones in a mitochondrion

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