They’re harder to anesthetize
A small study in the journal Anesthesiology found that redheaded women required 19 percent more of the anesthesia desflurane to be put to sleep than women with dark hair. Some scientists think that the protein mutation that causes red hair and fair skin makes redheads more sensitive to pain and therefore it’s more difficult to anesthetize them. (Going in for surgery? Here are five ways to recover faster.)
They have more sex than blondes or brunettes
“The sex lives of women with red hair were clearly more active than those with other hair colors, with more partners and having sex more often than the average,” Hamburg sex researcher Professor Werner Habermehl told the Daily Mail, after leading a survey of 6,000 German women through the Hamburg Medical Research Institute in Germany. Check out these simple ways to improve your sex life.