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Did you know?

The average office desk has 400 times more bacteria on it than a toilet.

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As many as 20% of Americans have been infected by the fungus known as Histoplasmosis. While most people are asymptomatic or only have slight symptoms, infection can progress to a rapid and potentially fatal superinfection.

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HIV testing reach is still limited. An estimated 40% of people with HIV (more than 14 million) remain undiagnosed and do not know their infection status.

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Nitroglycerin is used to alleviate various heart-related conditions, and it is also the chief component of dynamite (but mixed in a solid clay base to stabilize it).

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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.

Ras signalling activity is governed by bound GDP/GTP Ras signalling activity is governed by bound GDP/GTP
Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra Positron emission tomography (PET) image showing the difference in the metabolic activity of the bra
Relationship Between Physical Activity and Improved Health Benefits Relationship Between Physical Activity and Improved Health Benefits
Lightning Casualties in the United States by Location or Activity Lightning Casualties in the United States by Location or Activity
Summary of Cytokine Activity Summary of Cytokine Activity
Hormone Activity Hormone Activity
Video: Requirements for nervous signals

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