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Did you know?

All patients with hyperparathyroidism will develop osteoporosis. The parathyroid glands maintain blood calcium within the normal range. All patients with this disease will continue to lose calcium from their bones every day, and there is no way to prevent the development of osteoporosis as a result.

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Excessive alcohol use costs the country approximately $235 billion every year.

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Eating carrots will improve your eyesight. Carrots are high in vitamin A (retinol), which is essential for good vision. It can also be found in milk, cheese, egg yolks, and liver.

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Serum cholesterol testing in adults is recommended every 1 to 5 years. People with diabetes and a family history of high cholesterol should be tested even more frequently.

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Anti-aging claims should not ever be believed. There is no supplement, medication, or any other substance that has been proven to slow or stop the aging process.

The anterior pituitary is sometimes called the master gland because it secretes many hormones that r The anterior pituitary is sometimes called the master gland because it secretes many hormones that r
Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp Cardiac catheterization. Insertion of a tube called a catheter through a blood vessel. In this examp
Precession: Earth’s axis rotates, or “wobbles” Precession: Earth’s axis rotates, or “wobbles”
The nucleus is bounded by a double membrane called the nuclear envelope The nucleus is bounded by a double membrane called the nuclear envelope
Rotating a matrix along the x-axis multiplication Rotating a matrix along the x-axis multiplication
The hypothalamic–pituitary–adrenal axis The hypothalamic–pituitary–adrenal axis
Video: Red alga life cycle Animation

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