“Your left lung is smaller than your right lung to make room for your heart.”
More from Jenny Kellett
“A baby is born without kneecaps. They appear between age 2 and 6.”
“You have no sense of smell when you're sleeping.”
“Everyone has a completely unique smell (except for twins, who smell the same)”
“Right-handed people live, on average, nine years longer than left-handed people do.”