More Anesthesia Than Average
Remember when we said that redheads have a higher pain tolerance? That probably explains why one study showed that redheaded females required about 19-20% (at least) more anesthesia in order to be sedated as opposed to other people. The mutation that causes the higher pain tolerance is the likely reason why, and is also why redheads tend to require more topical anesthetics like Lidocaine and Novocaine to feel the same effect as others with less of the anesthetics.
Many Famous Redheads
Even though redheads are not very common, there have been many prominent redheads that have been quite influential throughout our history. Some of these famous redheads include Napoleon Bonaparte, Galileo Galilei, Vincent Van Gogh, Cleopatra, and Thomas Jefferson. There are also many famous people with red tresses today.