Children as young as 3 can be given IQ and ability tests. Children whose IQ scores are at or above 130 are usually considered gifted (the range for average intelligence is 85 to 115). Sometimes a child with an IQ score of 120 will qualify for a gifted class.igns of giftedness in a preschooler. Your 2- to 4-year-old may be gifted if she has some of these characteristics: 1  Has a specific talent, such as artistic ability or an unusual ease with numbers.
Yes, lack of sleep can cause itchy eyes. Itchy eye is a major symptom of inadequate tear production. If you don't have enough sleep, you body will be very dry and result in stopping produce tears. In that case, dry eyes occurs.
But over the long term, a person's growth may be affected by not getting the full amount of sleep. That's because growth hormone is normally released during sleep. If someone consistently gets too little sleep (known as sleep deprivation), growth hormone is suppressed. Lack of sleep also can affect other hormones. Studies show that sleep deprivation is linked to obesity and diabetes.