Birth, Infancy, and Maturation - The second six months
At six months most babies smile when they are brought to the physician's office. At one year of age a visit to the physician is more likely to produce tears and screams. The friendly, sociable attitude of the six-month-old gives way to one in which strangers are shunned or mistrusted, and everyone other than mother may qualify as a stranger.
By the sixth month the baby may roll over when placed on her back. She may learn to crawl, sit, pull herself up, and even stand. By a year she may start to walk, although walking unaided does not often occur so soon.
At this stage the baby is full of life and activity. She won't lie still when you change her diaper, and often needs distraction. She cries if you put-her down or leave her alone. Unless you are firm and resist running to her first whimper, you may set the stage for spoiling her as she gets older. Of course, if she continues to cry for any considerable length of time—not more than half an hour—make sure there is nothing wrong with her besides her displeasure at your not appearing like a genie because she screams or fusses.
Other changes occur at this age. Where before she had been a good sleeper, she may now not want to go to sleep or she may awaken at night. Let her know that you are nearby, but don't make a habit of playing with her in the middle of the night—not if you value your sleep.
If you should notice, as many parents do at about this time, that your baby seems to be left-handed, do not try to make her right-handed. Each of us inherits a preference for one hand or the other, and it is harmful to try to change it. In any case, you are not likely to know for sure which hand your child prefers until the second year of her life.
In this second six-month period, the baby will probably take some of her milk from a cup. Don't be surprised if she takes juices out of a cup but insists on taking milk from a bottle. If she tries to hold the bottle or cup herself, let her. Of course, it may be wise to keep a mop handy at first, but after few months her skills will improve. In any case, nonbreakable cups are recommended.
Diet and Teeth
The baby's diet is soon expanded to include pureed baby foods. You might even want to try the somewhat lumpier junior foods; as more of her teeth erupt, the baby will enjoy lumpier food more and more. Teething biscuits can be added to the diet, too. By the time she is one year old she will usually have six teeth (incisors), although, because no two children are alike, she may have none at all. By the end of the first year she will have lost some of her appetite, and her rapid weight gain will cease. This is entirely natural in a period when the outside world is taking more and more interest.
As she starts to move around she wants to investigate everything. Keep dangerous objects—detergents, poisons, and medicines, especially baby aspirin—out of her reach. Tell her “no” to emphasize the seriousness of certain prohibitions. She should understand what “no” means by the time she is one-year-old, and will also probably respond to other simple commands.
It is essential that your baby's health supervision be continued without interruption. During the second six months of life she will complete her protection against diphtheria, whooping cough, tetanus (DTP), and polio (Sabin), and be tested for exposure to tuberculosis (the tuberculin test).