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The toxic levels for lithium carbonate are close to the therapeutic levels. Signs of toxicity include fine hand tremor, polyuria, mild thirst, nausea, general discomfort, diarrhea, vomiting, drowsiness, muscular weakness, lack of coordination, ataxia, giddiness, tinnitus, and blurred vision.

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The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

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

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Alzheimer's disease affects only about 10% of people older than 65 years of age. Most forms of decreased mental function and dementia are caused by disuse (letting the mind get lazy).

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Patients should never assume they are being given the appropriate drugs. They should make sure they know which drugs are being prescribed, and always double-check that the drugs received match the prescription.

The thick bark of the cork oak of the Mediterranean region protects the tree from fire. The thick bark of the cork oak of the Mediterranean region protects the tree from fire.
The “Old Man” of Cro-Magnon, from the Dordogne region of France. The “Old Man” of Cro-Magnon, from the Dordogne region of France.
Pineal Gland, Located on the Dorsal Surface of the Midbrain Pineal Gland, Located on the Dorsal Surface of the Midbrain
Notice that there are conditions when the port fuel-injector, located in the intake manifold, and ... Notice that there are conditions when the port fuel-injector, located in the intake manifold, and ...
The limbic system is located within the higher brain, or cerebrum. The limbic system is located within the higher brain, or cerebrum.
WHAT IS THE AREA OF THE REGION SHADED IN RED? WHAT IS THE AREA OF THE REGION SHADED IN RED?
Video: HIV Infection: Viral life cycle

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