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Did you know?

There are 60,000 miles of blood vessels in every adult human.

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Autoimmune diseases occur when the immune system destroys its own healthy tissues. When this occurs, white blood cells cannot distinguish between pathogens and normal cells.

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Malaria mortality rates are falling. Increased malaria prevention and control measures have greatly improved these rates. Since 2000, malaria mortality rates have fallen globally by 60% among all age groups, and by 65% among children under age 5.

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On average, the stomach produces 2 L of hydrochloric acid per day.

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Many supplement containers do not even contain what their labels say. There are many documented reports of products containing much less, or more, that what is listed on their labels. They may also contain undisclosed prescription drugs and even contaminants.

The male reproductive system, sagittal section showing the organs of the system and their relation t The male reproductive system, sagittal section showing the organs of the system and their relation t
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(a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ... (a) Parasympathetic pathway. ACh is released from the preganglionic neuron over the synapse and ...
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Video: Introduction to Breast Cancer

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