Can you squeeze yourself out some vitamin C from this fresh health trivia? Test your knowledge here!

The average human body contains 9 pints of blood.

You probably know that lead—which we now know to be very harmful—used to be included in products like gasoline. However, if you go even farther back in history, you'll find a number of different civilizations that liked to smear lead on their faces…in the form of makeup. Ancient Egyptians lined their eyes with kohl that contained lead salts, and Ancient Roman women used a face whitening cream full of lead. Even Queen Elizabeth I mixed lead and vinegar and applied it to her face to smooth her skin.

Scurvy is caused by a vitamin C deficiency.

It is recommended that adult women consume 46 grams of protein per day, while adult men should consume 56 grams per day. These amounts can vary depending on the individual's age, weight, and activity level because consuming too much protein can have negative effects on the body, such as increasing the risk of kidney damage and osteoporosis.

The leg press exercise targets the quadriceps muscle group, which is made up of the four muscles located on the front of the thigh.