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People who have myopia, or nearsightedness, are not able to see objects at a distance but only up close. It occurs when the cornea is either curved too steeply, the eye is too long, or both. This condition is progressive and worsens with time. More than 100 million people in the United States are nearsighted, but only 20% of those are born with the condition. Diet, eye exercise, drug therapy, and corrective lenses can all help manage nearsightedness.

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The familiar sounds of your heart are made by the heart's valves as they open and close.

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Recent studies have shown that the number of medication errors increases in relation to the number of orders that are verified per pharmacist, per work shift.

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Egg cells are about the size of a grain of sand. They are formed inside of a female's ovaries before she is even born.

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Asthma cases in Americans are about 75% higher today than they were in 1980.

Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes. Basal cell carcinoma, a frequent type of skin cancer that rarely metastasizes.
The integument: the epidermis, dermis, subcutaneous tissue, and its appendages. The integument: the epidermis, dermis, subcutaneous tissue, and its appendages.
The structure of skin (a) and epidermis (b) at the microscopic level. The structure of skin (a) and epidermis (b) at the microscopic level.
A Schematic Diagram of the Basal Ganglia and Their Connections A Schematic Diagram of the Basal Ganglia and Their Connections
Basal cell carcinoma Basal cell carcinoma
The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ... The enthalpy change for converting 10.0 g of ice at -25.0 C to water at 80.0 C is ________ kJ. ...
Video: Semidiscontinuous DNA replication

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