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Did you know?

A headache when you wake up in the morning is indicative of sinusitis. Other symptoms of sinusitis can include fever, weakness, tiredness, a cough that may be more severe at night, and a runny nose or nasal congestion.

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Intradermal injections are somewhat difficult to correctly administer because the skin layers are so thin that it is easy to accidentally punch through to the deeper subcutaneous layer.

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The immune system needs 9.5 hours of sleep in total darkness to recharge completely.

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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

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The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland. The pancreas. This organ sits just below the stomach and is both an exocrine and an endocrine gland.
Benign prostatic hyperplasia. The condition results when an inner capsule of nonfunctional prostate Benign prostatic hyperplasia. The condition results when an inner capsule of nonfunctional prostate
Hypothalamus and pituitary gland. Hypothalamus and pituitary gland.
Hypothalamus and Pituitary Gland Hypothalamus and Pituitary Gland
Gland #1 (Hard) Picture 1 Gland #1 (Hard) Picture 1
Structure of the human adrenal gland Structure of the human adrenal gland
Video: Mendel's Pea Experiment

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