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People often find it difficult to accept the idea that bacteria can be beneficial and improve health. Lactic acid bacteria are good, and when eaten, these bacteria improve health and increase longevity. These bacteria included in foods such as yogurt.

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Chronic marijuana use can damage the white blood cells and reduce the immune system's ability to respond to disease by as much as 40%. Without a strong immune system, the body is vulnerable to all kinds of degenerative and infectious diseases.

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Human kidneys will clean about 1 million gallons of blood in an average lifetime.

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Elderly adults are living longer, and causes of death are shifting. At the same time, autopsy rates are at or near their lowest in history.

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Studies show that systolic blood pressure can be significantly lowered by taking statins. In fact, the higher the patient's baseline blood pressure, the greater the effect of statins on his or her blood pressure.

An example of anatomical homology: homologous structures found in vertebrates. An example of anatomical homology: homologous structures found in vertebrates.
A jawbone found in the mainland Jenolan Caves A jawbone found in the mainland Jenolan Caves
Juvenile American alligator swimming, showing the distinctive yellow striping found on juveniles Juvenile American alligator swimming, showing the distinctive yellow striping found on juveniles
Ignition timing marks are found on the harmonic balancers that are equipped with distributor ... Ignition timing marks are found on the harmonic balancers that are equipped with distributor ...
Major Types of Hydrogen Bonds Found in Biomolecular Interactions Major Types of Hydrogen Bonds Found in Biomolecular Interactions
Palpating lymph nodes: Cervical Palpating lymph nodes: Cervical
Video: Muscular System Animation

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