Explaining Our Body on Instagram: "Wisdom teeth cause so many issues comes down to evolution and space. Wisdom teeth, also known as third molars, are the last teeth to erupt, usually between the ages of 17 and 25. Thousands of years ago, human jaws were larger and diets were tougher, so these extra molars helped with grinding food. Modern humans, however, have smaller jaws — and often not enough room to accommodate them. Because of this lack of space, wisdom teeth frequently grow in at awkward a