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Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

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

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For high blood pressure (hypertension), a new class of drug, called a vasopeptidase blocker (inhibitor), has been developed. It decreases blood pressure by simultaneously dilating the peripheral arteries and increasing the body's loss of salt.

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Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

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Sperm cells are so tiny that 400 to 500 million (400,000,000–500,000,000) of them fit onto 1 tsp.

Map distances are generally additive Map distances are generally additive
Avogadro's number calculation Avogadro's number calculation
Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc Isotopes may be stable or radioactive depending on the arrangement and number of neutrons in the nuc
Patients with celiac disease must maintain a gluten-free diet. Many gluten-free items are widely ... Patients with celiac disease must maintain a gluten-free diet. Many gluten-free items are widely ...
Survey of conserved nucleotides in E. coli promoters Survey of conserved nucleotides in E. coli promoters
Separation of variable number tandem repeat (VNTR) alleles after PCR amplification Separation of variable number tandem repeat (VNTR) alleles after PCR amplification
Video: Glucose anabolism reactions: Glycogenolysis and Gluconeogenesis

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