Natural health: My teeth are sensitive to cold drinks 

Your saliva should have a pH of around 7, if it is too acidic then the enamel becomes weakened and porous, leading to tooth sensitivity.

My teeth have become sensitive to cold drinks recently. Sometimes the sensitivity occurs out of the blue. What would you suggest?

Saliva is a combination of enzymes, peptides, mineral, and bicarbonate, and your teeth are ‘bathing’ in this solution continuously. Your saliva should have a pH of around 7, if it is too acidic then the enamel becomes weakened and porous, leading to tooth sensitivity and providing an optimal environment for decay to take hold.