As children get older, they typically tell more white lies and fewer harmful ones.

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Known sometimes as the "birthdate effect" or "relative age effect", this generally diminishes as children get older but does not vanish.

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It suggests it could influence family relationships as children get older.

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As children get older, highly responsive parents spend time with children, look for ways to be helpful and encourage them to voice their opinions.

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Nor does the problem disappear as children get older.

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"Many children, as they get older, the tics become either much less prominent or certainly reduced to a single or just a few tics that are not as disabling, " Schub says.

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The doctors also found that the experiences of voice hearers as children did not necessarily get worse as they grew older.

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Instead, BRIC women confront a series of family and social pressures that pile onto women when they marry, ratchet up after they have children, and become almost crushing as their parents and in-laws get older.

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