Osteoporosis primarily affects what?

More Questions:

How many Imperial gallons would a firkin of beer contain?

What famous fictional cannibal made his first appearance in the 1981 novel "Red Dragon"?

Who was the real-life model for the character of Abe Ravelstein in the novel "Ravelstein"?

What four groups of instruments play in a modern symphony orchestra?

Buenos Aires is the capital of what country?

Thursday Island is located in the Torres Strait off the coast of what country?

What type of animal are flying foxes?

What classic 1951 sci-fi film features the immortal line "Klaatu Barata Nikto"?

What are the names of the seven dwarfs in Disney's "Snow White and the Seven Dwarfs"?

Who played the role of Daniel in the 1984 film "The Karate Kid"?

Where were scissors believed to be first invented?

What Spanish explorer is credited with discovering the Mississippi River?

According to legend, what laws were so named because of the color of the paper used when the ordinance was written?

What war saw the use of tanks in battle for first time?

In the novel series, "A Series of Unfortunate Events", who was the Baudelaire's sixth guardian?