Did you know?
It is difficult to obtain enough calcium without consuming milk or other dairy foods.
Did you know?
Today, nearly 8 out of 10 pregnant women living with HIV (about 1.1 million), receive antiretrovirals.
Did you know?
When blood is deoxygenated and flowing back to the heart through the veins, it is dark reddish-blue in color. Blood in the arteries that is oxygenated and flowing out to the body is bright red. Whereas arterial blood comes out in spurts, venous blood flows.
Did you know?
Patients who have undergone chemotherapy for the treatment of cancer often complain of a lack of mental focus; memory loss; and a general diminution in abilities such as multitasking, attention span, and general mental agility.
Did you know?
Children with strabismus (crossed eyes) can be treated. They are not able to outgrow this condition on their own, but with help, it can be more easily corrected at a younger age. It is important for infants to have eye examinations as early as possible in their development and then another at age 2 years.
The Sun as it appears from the surface of Earth during the middle of the day
Mass Loss by a Supermassive Star
Hearing and Reading Words
Testing hearing acuity using a tuning fork.
Loud Music and Hearing Loss (1 of 2)
Estimating Potential Blood Volume Loss (Part 2)