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Illicit drug use costs the United States approximately $181 billion every year.

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Looking at the sun may not only cause headache and distort your vision temporarily, but it can also cause permanent eye damage. Any exposure to sunlight adds to the cumulative effects of ultraviolet (UV) radiation on your eyes. UV exposure has been linked to eye disorders such as macular degeneration, solar retinitis, and corneal dystrophies.

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In 1835 it was discovered that a disease of silkworms known as muscardine could be transferred from one silkworm to another, and was caused by a fungus.

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Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.

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The oldest recorded age was 122. Madame Jeanne Calment was born in France in 1875 and died in 1997. She was a vegetarian and loved olive oil, port wine, and chocolate.

How genes produce proteins that determine traits in a simple dominant-recessive relationship. How genes produce proteins that determine traits in a simple dominant-recessive relationship.
Some functions of proteins Some functions of proteins
The 20 common amino acids of proteins The 20 common amino acids of proteins
The a helix, a common secondary structure in proteins The a helix, a common secondary structure in proteins
Acute Phase Proteins Acute Phase Proteins
Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins Replication initiation at oriC, requiring DnaA, DnaB, and DnaC proteins
Video: Electrical changes in the heart

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