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Stroke kills people from all ethnic backgrounds, but the people at highest risk for fatal strokes are: black men, black women, Asian men, white men, and white women.
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).
The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.
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.
Increased intake of vitamin D has been shown to reduce fractures up to 25% in older people.
![Return of oxygenated blood to the heart and entry into the aorta (red = oxygenated blood, blue = ...](https://biology-forums.com/gallery/30/medium_548020_08_06_17_5_10_12_30467634.jpeg)
![The hazmat training pyramid. It is important to train from the ground up, starting with a firm grasp ...](https://biology-forums.com/gallery/33/medium_380798_24_08_17_3_22_02_336531630.jpeg)