Regulate heat with cooling foods such as cucumber, water melon and green tea.
Purple The naturopath says: This could mean you are suffering from high cholesterol which could result in heart problems.
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Persistant dryness could be caused by Sjorgren's syndrome - an immunological disorder.
If your tongue is persistantly dry seek medical advice.
Many complementary therapies, including Traditional Chinese Medicine (TCM) and naturopathy, use the tongue to aid diagnosis.
'Your tongue is richly supplied with blood vessels,' says naturopath Laurence Kirk of The British College of Naturopath and Osteopathy.
The Chinese herbalist says: A dry furry tongue indicates excessive mucus in the body.
This is caused by too much dairy and sugar in the blood.
A purple tongue could also indicate chronic bronchitis which cuts down the efficiency of the airwaves in bringing oxygen to the bloodstream.
If your tongue continues to be purple, seek medical advice.
Treat with warming herbs such as garlic, ginger and cinnamon.