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Did you know?

Symptoms of kidney problems include a loss of appetite, back pain (which may be sudden and intense), chills, abdominal pain, fluid retention, nausea, the urge to urinate, vomiting, and fever.

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Congestive heart failure is a serious disorder that carries a reduced life expectancy. Heart failure is usually a chronic illness, and it may worsen with infection or other physical stressors.

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Hyperthyroidism leads to an increased rate of metabolism and affects about 1% of women but only 0.1% of men. For most people, this increased metabolic rate causes the thyroid gland to become enlarged (known as a goiter).

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The National Institutes of Health have supported research into acupuncture. This has shown that acupuncture significantly reduced pain associated with osteoarthritis of the knee, when used as a complement to conventional therapies.

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The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Exploring the functional activity of brain regions by using fMRI scans. Exploring the functional activity of brain regions by using fMRI scans.
Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve. Brain, spinal cord, and spinal nerves with an expanded view of a spinal nerve.
brain sorts what we see brain sorts what we see
Common pathogens and some infections Common pathogens and some infections
Extraversion, Introversion, and the Brain Extraversion, Introversion, and the Brain
Blood–brain barrier. Blood–brain barrier.
Video: Anatomy and Chemical Makeup of a Single Hair (Animation)

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