Some historic facts:

(1)Blueberries and Bluetooth
By the way if, you're wondering where the Bluetooth name originally came from, it named after a Danish Viking and King, Harald Blåtand (translated as Bluetooth in English), who lived in the latter part of the 10th century. Harald Blåtand united and controlled Denmark and Norway (hence the inspiration on the name: uniting devices through Bluetooth). He got his name from his very dark hair which was unusual for Vikings, Blåtand means dark complexion. However a more popular, (but less likely reason), was that Old Harald had a inclination towards eating Blueberries , so much so his teeth became stained with the colour, leaving Harald with a rather unique set of molars. And you thought your teeth were bad...

(2)Paddo's: Getting High on Mushrooms; Causing Dietary Lactosis.
• Opportunities for drugs in the wild was pretty chancy before the rise of agriculture
• Evidence of ancient use of plants in healing (aspirin from willow bark, ephedrine from gnetophytes)
• Many tribes incorporated mind-altering substances in religious rituals

• One such psychoactive drug was derived from Amanita mushrooms (fly agaric)

• Used for centuries by tribes in Siberia to induce visions
• Viking berserkers used Amanita to pump themselves up for plunder

• Another psychoactive drug used in several cultures came from Psilocybe mushrooms
• Source of psilocybin


(3) Lead Pollution;
Most people think of lead pollution as a modern problem. A result of adding the toxic metal to the petrol we burn in our cars or the pigments added, until recently, to paint and other products. In fact lead pollution is nothing new. Over the last decade, scientists have been studying natural systems that preserve a record of past air quality to try to chart the build up of toxic metals like lead in the atmosphere as a result of human activity. Investigations have considered records preserved in lake sediments and peat bogs and, perhaps most comprehensively, in cores taken through the ice of Greenland’s frozen interior.
New data now extend the study to Roman, Anglo-Saxon and Viking people living in the UK. Lead exposure among these groups appears to have been much more variable than prehistoric or modern people. Although much of the population had tooth enamel lead concentrations in the range 0.1-1ppm, similar to prehistoric and modern people, a significant proportion appear to have been subject to much greater exposure. Among all of these groups there are individuals with tooth lead concentrations greater than 10ppm and occasionally significantly more. Concentrations of this magnitude among modern people are associated with occupational or acute exposure and linked to educational and behavioural problems in children. Whatever the cause, the data suggest lead pollution was a significant problem for both our Roman and early medieval ancestors.

(3)Mice and Men:
Pliny the Elder's Natural History;
There was valuable information in all the books, but much to be scoffed at, as well, such as Pliny's advice to eat a mouse a day to prevent tooth decay.

(4) Braces:
Why is it important for people to get braces if they have crooked teeth or their jaw and mouth are not lined up incorrectly? Crooked teeth can lead to tooth decay and periodontal disease because itUs more difficult to clean your teeth if they are not straight.