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Did you know?
Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.
Did you know?
Thyroid conditions may make getting pregnant impossible.
Did you know?
On average, the stomach produces 2 L of hydrochloric acid per day.
Did you know?
According to research, pregnant women tend to eat more if carrying a baby boy. Male fetuses may secrete a chemical that stimulates their mothers to step up her energy intake.
Did you know?
There are over 65,000 known species of protozoa. About 10,000 species are parasitic.