Weaning Your Baby Onto Solids. The term 'to wean' comes from an ancient phrase that means 'to accustom to'. So weaning refers to the period during which an infant gradually becomes accustomed to food other than milk (breast or formula). Up until 6 months of age, breast or formula milk alone is nutritionally adequate.
Occasional airplane vibration during flight is not unusual. There are many causes of airplane vibration, including landing gear extension and retraction, extension of speed brakes, free play in movable surfaces, and systems malfunctions.
Plane brain: Flying really can give you a headache, says study. Traveling from A to B is a headache for many people, whether it's by train, plane or automobile. But the pain is apparently rather more acute when travelling by air for some, researchers have said. They argue that 'airplane headache,' a form of pain that flares up during landing, should get more recognition in the medical world. Pain in the brain: Flying can cause headaches, say researchers.