Did you know?
Despite claims by manufacturers, the supplement known as Ginkgo biloba was shown in a study of more than 3,000 participants to be ineffective in reducing development of dementia and Alzheimer’s disease in older people.
Did you know?
There are more nerve cells in one human brain than there are stars in the Milky Way.
Did you know?
About one in five American adults and teenagers have had a genital herpes infection—and most of them don't know it. People with genital herpes have at least twice the risk of becoming infected with HIV if exposed to it than those people who do not have genital herpes.
Did you know?
A good example of polar molecules can be understood when trying to make a cake. If water and oil are required, they will not mix together. If you put them into a measuring cup, the oil will rise to the top while the water remains on the bottom.
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.
Assessing for Tinel's Sign
Spain’s North American Frontier, c. 1750
Testing hearing acuity using a tuning fork.
The steps in the hearing process. (1) Sound waves enter the outer ear and travel through the ear ...
Conservation biology arose in response to biodiversity loss
Types of ecosystem service vs. total global value per year