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Of the estimated 2 million heroin users in the United States, 600,000–800,000 are considered hardcore addicts. Heroin addiction is considered to be one of the hardest addictions to recover from.

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In 1844, Charles Goodyear obtained the first patent for a rubber condom.

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After 5 years of being diagnosed with rheumatoid arthritis, one every three patients will no longer be able to work.

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Human neurons are so small that they require a microscope in order to be seen. However, some neurons can be up to 3 feet long, such as those that extend from the spinal cord to the toes.

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Fatal fungal infections may be able to resist newer antifungal drugs. Globally, fungal infections are often fatal due to the lack of access to multiple antifungals, which may be required to be utilized in combination. Single antifungals may not be enough to stop a fungal infection from causing the death of a patient.

PET scan of the brain in a patient with Alzheimer’s disease. PET scan of the brain in a patient with Alzheimer’s disease.
Examples of Specific Antidotes for Overdosed Substances or Toxins Examples of Specific Antidotes for Overdosed Substances or Toxins
People whose behaviors violate norms are often called mentally ill. “Why else would they do such ... People whose behaviors violate norms are often called mentally ill. “Why else would they do such ...
Prostate-specific antigen test. Prostate-specific antigen test.
The ORPR region The ORPR region
If nondisjunction (the improper separation of chromosomes) occurs during meiosis, the eggs or sperm If nondisjunction (the improper separation of chromosomes) occurs during meiosis, the eggs or sperm
Video: Isovolumetric VC, Ventricular ejection, Isovolumetric & Passive ventricular filling

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