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Did you know?

Parkinson's disease is both chronic and progressive. This means that it persists over a long period of time and that its symptoms grow worse over time.

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ACTH levels are normally highest in the early morning (between 6 and 8 A.M.) and lowest in the evening (between 6 and 11 P.M.). Therefore, a doctor who suspects abnormal levels looks for low ACTH in the morning and high ACTH in the evening.

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Cytomegalovirus affects nearly the same amount of newborns every year as Down syndrome.

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

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Vampire bats have a natural anticoagulant in their saliva that permits continuous bleeding after they painlessly open a wound with their incisors. This capillary blood does not cause any significant blood loss to their victims.

Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag Distribution of glaciers in North America (a) in the late twentieth century, and (b) 18,000 years ag
The cranium of early African H. erectus KNM-ER 3733 is nearly 1.8 million years old. The cranium of early African H. erectus KNM-ER 3733 is nearly 1.8 million years old.
Review of Health and Illness over the Adult Years Review of Health and Illness over the Adult Years
School age (late childhood): 6–12 years, or to puberty. School age (late childhood): 6–12 years, or to puberty.
Life Cycle Nutrition: Toddlers through the Later Years Life Cycle Nutrition: Toddlers through the Later Years
Earth 240 Million Years Ago Earth 240 Million Years Ago
Video: Types of Transport - Uniport, Antiport and Symport (Glucose and Na+K+ Transporters)

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