By 18 months a baby should have developed the ability to walk alone, including standing up, balancing, and taking steps. Babies who cannot walk by 18 months should be evaluated by their physician.

Colicky babies cry more often than other babies, for no apparent reason. They may turn bright red, swallow gasps of air, and clench their fists during crying. These behaviors usually begin several weeks after the baby has been born, and may last up to three months.

Because newborns have not developed an immune system, it will be hard for their bodies to fight the germs that gave them a cold. This means there is a higher chance that the illness may turn into something more dangerous or life threatening, such as croup or pneumonia. Medical treatment can help to prevent this.

Common problems with a woman's reproductive organs, like uterine fibroids, endometriosis, and pelvic inflammatory disease can worsen with age and also affect fertility. These conditions might cause the fallopian tubes to be blocked, so the egg can't travel through the tubes into the uterus.

The pressure on your inferior vena cava makes it harder for the blood from your legs to make the return journey to your heart.

With PCOS, women typically have, missed or irregular periods (monthly bleeding), and many small cysts (fluid-filled sacs) in their ovaries.