O fl�or desempenha um papel significativo na sa�de dent�ria e esquel�tica. Tem sido amplamente estudado e debatido. Embora o fl�or em concentra��es adequadas seja ben�fico, a ingest�o excessiva de fl�or, especialmente em crian�as, pode levar a problemas de sa�de graves, como a fluorose dent�ria, a fluorose esquel�tica e a fluorose n�o esquel�tica. A sobre-exposi��o a longo prazo ao fl�or, particularmente em �reas end�micas, tem sido associada a uma s�rie de efeitos adversos para a sa�de, incluindo a neurotoxicidade, que afecta o desenvolvimento da intelig�ncia nas crian�as. O QI � uma medida de intelig�ncia derivada de testes padronizados. V�rios estudos efectuados em todo o mundo demonstraram consistentemente uma rela��o inversa entre a exposi��o ao fl�or e os n�veis de QI das crian�as. Embora as provas sugiram uma associa��o entre a exposi��o ao fl�or e um QI mais baixo, estas conclus�es s�o inconclusivas e n�o generaliz�veis. O QI � influenciado por m�ltiplos factores, que n�o foram adequadamente avaliados nestes estudos. Para estabelecer uma rela��o causal, precisamos de estudos longitudinais que controlem estes factores de confus�o para melhor compreender e mitigar o potencial impacto do fl�or na intelig�ncia.

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Description de la librairie

**Please note our transit times are from the date of dispatch.** We first started out as ?The Paperback Exchange,? a chain of physical bookstores where we would part exchange your beloved books for new stories to transport you to faraway places. However, as shopping started to evolve to online shops and marketplaces, we bid our stores goodbye to become ?PBShop.? This transition has only allowed us to blossom as we now ship thousands of titles to book lovers across the globe. We pride ourselves in being a community of local book lovers which allows our passion and devotion to shine in everything we do. In 2020 we not only celebrated our 20th birthday but our 1st birthday as being completely employee owned after becoming an E.O.T in September 2019. We are proud to be different and embrace standing apart on a book mountain by working from a virtual inventory which allows us to provide thousands of books that may be difficult to get for your bookshelf or your studies. Working with a number of different suppliers allows us to explore other avenues such as puzzles, sheet music and even stationery so we really do have something for everyone. Life is about being versatile in all realms of existence. If this is your first purchase with us, or you are a returning customer, we would like to welcome you to the PBShop family, for there is no friend as loyal as a book. We are a company who put our customers at the centre of everything we do as we understand the importance of reading because once you learn to read, you will forever be free. There are a whole lot of things in this world of ours that we are yet to explore, which is why we will forever inspire curious minds.

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Pbshop.co.uk
Unit 22 Horcott Industrial Estate, Horcott Road, Fairford, GL7 4BX, United Kingdom

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We ask all customers to contact us for authorisation should they wish to return their order. Orders returned without authorisation may not be credited.
If you wish to return, please contact us within 14 days of receiving your order to obtain authorisation.
Returns requested beyond this time will not be authorised.
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Orders are shipped from our UK warehouse. Delivery thereafter is between 4 and 14 business days. Please contact us if you have any queries about our services or products.

Frais d?exp�dition de Royaume-Uni�vers�France

Frais d?exp�dition de Royaume-Uni�vers�France
Quantit� command�e	7 � 17 jours ouvr�s	7 � 17 jours ouvr�s
Premier article	EUR 4.90	EUR 4.90

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