The general rule is six months after eruption of the first tooth. Taking your child to the dentist at a young age is the best way to prevent problems such as tooth decay, and can help parents learn how to clean their child's teeth and identify his or her fluoride needs.
Retching (also known as dry heaving) is the reverse movement (peristalsis) of the stomach and esophagus without vomiting. It can be caused by bad smell or choking, or by withdrawal from some medications after vomiting stops.
Double clutching, sometimes called double declutching, is a method of shifting gears with a manual transmission. Instead of pushing in the clutch once and shifting to another gear, the driver first shifts the transmission into neutral, and then to the next gear, pressing the clutch with each change.