See the entire definition of Backbone. Biopsy: The removal of a sample of tissue for examination under a microscope to check for ... Blood clots: Blood that has been converted from a liquid to a solid state. Also called a t... Bone scan: A nuclear medicine technique for creating images of bones on a computer screen ...
Schmidt's study also stopped following the toddlers at age 3; she acknowledges that some cognitive changes may not occur until children are a few years older. TV exposure in babies younger than 2 doesn't do any good, Schmidt and Christakis agree.
Babies may begin reaching for objects as early as three months, according to Parenting.com. Early on, her reaching will be more general. Her world is full of fascinating objects, and as soon as she learns she can touch and examine them at will, she'll have her hands on everything.