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Did you know?

IgA antibodies protect body surfaces exposed to outside foreign substances. IgG antibodies are found in all body fluids. IgM antibodies are the first type of antibody made in response to an infection. IgE antibody levels are often high in people with allergies. IgD antibodies are found in tissues lining the abdomen and chest.

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Alcohol acts as a diuretic. Eight ounces of water is needed to metabolize just 1 ounce of alcohol.

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Medications that are definitely not safe to take when breastfeeding include radioactive drugs, antimetabolites, some cancer (chemotherapy) agents, bromocriptine, ergotamine, methotrexate, and cyclosporine.

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

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Cancer has been around as long as humankind, but only in the second half of the twentieth century did the number of cancer cases explode.

Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment. Testing the reducing atmosphere hypothesis for the origin of life - the Miller and Urey experiment.
Evolutionary shift in plant life cycle stage dominance. Evolutionary shift in plant life cycle stage dominance.
Grime's classification of plant life-history strategies Grime's classification of plant life-history strategies
Cumulative change for six personality-trait domains across the life course show distinct patterns. Cumulative change for six personality-trait domains across the life course show distinct patterns.
In old age, as in all other stages of the life course, people find life more pleasant if they have ... In old age, as in all other stages of the life course, people find life more pleasant if they have ...
A single cell from an early-stage human embryo A single cell from an early-stage human embryo
Video: Atrial natriuretic peptide (vasodilation) & Aldosterone

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