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Drink tap water to avoid dentist’s drill

Drinking tap water may help you avoid dentist’s drill, concludes a new study.
The Centres for Disease Control and Prevention (CDC) states that tooth decay, if left untreated, can cause pain and infections that hinder eating, speaking, playing and learning. The controlled addition of a fluoride compound to public water supplies is considered to be the most cost-effective way to prevent cavities and fight tooth decay, according to a study published in ‘General Dentistry’, the Academy of General Dentistry’s (AGD) peer-reviewed clinical journal.

“Fluoride makes the entire tooth structure more resistant to decay and promotes remineralisation, which aids in repairing early decay before damage is even visible,” said C H Chu, lead author of the study. “Studies have confirmed the most effective source of fluoride to be water fluoridation.”

“Instead of drilling holes to fix cavities, dentists would rather educate the public on how to avoid developing tooth decay in the first place,” said Cynthia Sherwood, spokesperson for the AGD. “Drinking tap water to receive fluoride is safe, and it’s easier on your wallet than going to the dentist for a filling.”

Male deer honest about their prowess

The calls or groans of male Eurasian fallow deer give rivals and possible mates an honest account of the emitting deer’s prowess, a new study has found.

The study suggests that the acoustic qualities of a deer’s call change over time and reflect changes in status and age.

“As males aged, their dominance ranks changed and rank was a good predictor of mating success,” said Alan McElligott, University of London’s Queen Mary College.

“Their calls contained features that were honest signals, modified dynamically according to male quality, and showing a very robust example of ‘truth in advertising’ in animal communication,” he said.

He and Elodie Briefer, also from Queen Mary, along with Elisabetta Vannoni of Switzerland’s University of Zurich, studied fallow deer, native to most of Europe, during four consecutive breeding seasons.

They recorded male-to-male competition and matings between dawn and dusk every day during the annual mating season, they said. They also recorded the vocalisations of each male.

Aspirin could be the best remedy for migraine

A 1000mg dose of aspirin can reduce the pain of a migraine headache within two hours, a new study has found.

It also reduces any associated nausea, vomiting, and sensitivity to light or sound (photophobia or phonophobia), the study found.

Formulations of aspirin 900 mg together with 10 mg of the antiemetic metoclopramide are better than placebo at reducing symptoms of nausea and vomiting, according to the findings of a Cochrane Systematic Review using data from 13 studies with 4,222 participants.

The common symptom, whatever type of migraine someone has, is a severe headache, typically once or twice a month, lasting between four and 72 hours.

Given the numbers of people affected, and the extent of the pain caused, migraine has considerable social and economic impact.

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