A combination of these symptoms due to vertebral narrowing is called vertebral insufficiency. Note that a narrowing in the subclavian arteries (which supply the arms) can also sometimes cause vertebral symptoms, since the vertebral arteries branch from these arteries.
1 Some eager parents interpret a string of da-da babbles as their baby's first words -- daddy!. 2  But babbling at this age is usually still made up of random syllables without real meaning or comprehension. 3  Baby talk at 9 months. 4  After 9 months, babies can understand a few basic words like no and bye-bye..
1 Baby talk at 12 months. Most babies say a few simple words such as 'mama' and 'dada' by the end of 12 months - and now know what they're saying.  Baby talk at 18 months. By this age, babies may use up to 20 simple words, like daddy, dog or cup.