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The author warns that your voice may be harmed if ................ .
Temporarily losing your voice is common enough, especially
in winter, when throats suffer from coughs and colds and
dry, heated atmospheres. Teachers, lecturers, lawyers and
other professionals whose work involves talking are
especially vulnerable to vocal strain, while dropping the
vocal pitch to be softer, hardening it to give authority or
raising it to be heard can all cause damage. Emotional
stress, smoking and drinking alcohol and throat infections
are all possible causes of vocal loss, while some drugs, such
as anti-histamines, can alter voice quality. For those whose
voice is their tool, the best advice when acute throat illness
strikes is to stay off work, drink plenty of water, suck glycerin
sweets and take steam inhalations at least twice a day.