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Doctor insights on: Hand

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When can you know if a child is right or left handed?

When can you know if a child is right or left handed?

About two years old: Most children have developed a dominant hand by age two years. It's unusual for them to do this much younger. ...Read more

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Dr. Daniel Lebowitz
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Are people right handed/left handed by nature or is that cultivated over time?

Are people right handed/left handed by nature or is that cultivated over time?

Genetics: People are right handed left handed by birth. Attempts to change left handed people to right handedness failed miserably when it was tried. ...Read more

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Dr. Daniel Lebowitz
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When will I know if my baby is right or left-handed?

When will I know if my baby is right or left-handed?

Be patient: Although some researchers suggest an infant may use one hand more than another as early as 6m, most describe true hand dominance as emerging between 2 & 4 yrs. I worry when a child uses one hand more often before a year as it can be an emerging sign of a motor impairment as seen in cerebral palsy. ...Read more

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Is there a medical advantage to being right handed?

Is there a medical advantage to being right handed?

R. Handed: Not really, not because I am Left handed, but no proven evidence of any medical advantage to either. ...Read more

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Dr. Daniel Lebowitz
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Is it normal for a right handed person to have left eyesight weaker than the right side?

Is it normal for a right handed person to have left eyesight weaker than the right side?

Not related: I would not think that your eyesight has anything to do with your handedness. The lens has changed in such a way that the vision is not as good on the left-hand side but not related to whether your right-handed or not. ...Read more

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How long would it take to switch from being right-handed to left-handed?

Left handed nature: At one time children would be forced to switch from left handedness to right handedness through persistent exercises and use of the right hand rather than the left. Since the left handedness arises from one's neurologic makeup, it will always be dominant, but one can learn right handed uses through persistence and exercise. To my knowledge, one is not really converted to the right handed nature. ...Read more

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If I was born left handed and was left handed dominated ans then became right handed dominated would it mess up my body when using cell phones ?

If I was born left handed and was left handed dominated ans then became right handed dominated would it mess up my body when using cell phones ?

Question confusing: Handedness is generally considered a prewired process in most, with right hand dominant most common. There are many left hand dominent folks, and some where no true dominance exists. (called ambidexterous). If your question is whether a cell phone triggered the change, i'd have to speculate no! someone prewired to do well with both may gravitate to right to fit in or it fits with your activities. ...Read more

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Are people with situs inversus are prone to be left handed?

Are people with situs inversus are prone to be left handed?

No: Situs inversus results from abnormal developmental signals that direct the alignment of the internal organs. It does not affect brain development or handedness. ...Read more

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How to tell whether a toddler is left handed or right handed?

How to tell whether a toddler is left handed or right handed?

Right or left: Generally by age 3-4 years but often preschool or kindergarten. Hope this helps. ...Read more

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Should I be worried about my cholesterol levels? Dr. didn't even mentioned it, he just handed me the results.

Should I be worried about my cholesterol levels? Dr. didn't even mentioned it, he just handed me the results.

Too young: Ed. But only in so far as to know you should retest in a decade. In the meantime you should exercise regularly, maintain an ideal weight, and eat a diet low in sugars. ...Read more

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