Which of the following foods is the best source of calcium?

Health Trivia / April 01, 2026

Yogurt. Dairy products, such as yogurt and milk, are one of the best sources of calcium.

Who was the world's first sex-change patient?

Health Trivia / April 01, 2026

Christine "George" Jorgensen. In 1952, George Jorgensen became Christine Jorgensen after the world's first sex-change operation in Denmark.

What medical term refers to the amount of red blood cells in the blood?

Health Trivia / March 31, 2026

Hematocrit. The normal range of red blood cells is 41-50% for men and 36-44% for women.

What are the gaps between nerve cells called?

Health Trivia / March 31, 2026

Synapses. A synapse allows a neuron to pass an electrical or chemical signal to another cell.

John Watson and Rosalie Rayner's Little Albert experiments proved that what can be conditioned?

Health Trivia / March 30, 2026

Fear. The Little Albert experiments are named for the one and only boy, Albert B., who had such experiments performed on him.

What percentage of people in their 40's have some gray in their hair?

Health Trivia / March 30, 2026

40 Percent. Going gray before 20 in Caucasians, or before 30 in African-Americans is considered premature graying.