There are more bacteria in your mouth than there are people in the world.
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If all the neurons in the human body were lined up, they would stretch more than 600 miles.
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Only 12 hours after an egg cell is fertilized by a sperm cell, the egg cell starts to divide. As it continues to divide, it moves along the fallopian tube toward the uterus at about 1 inch per day.
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Long-term mental and physical effects from substance abuse include: paranoia, psychosis, immune deficiencies, and organ damage.
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According to animal studies, the typical American diet is damaging to the liver and may result in allergies, low energy, digestive problems, and a lack of ability to detoxify harmful substances.
Moon and Earth
Earth’s history spans 4.5 billion years. Geologists and paleontologists have pieced together the his