In good times and bad, tea is often the go-to, but what exactly does it do for our wellbeing?

All tea comes from the same plant, “Camellia sinensis’. Tea leaves go through various processes including fermenting and drying to create the unique characteristics of your favourite brew.

Black tea is the most fermented compared with white, green and oolong teas.

The fermentation process gives each tea distinct levels of protective plant compounds called polyphenols. It is the polyphenols that are responsible for many of the health benefits of tea.

Polyphenols are thought to potentially reduce the risk of heart disease, with one study showing beneficial effects on both cholesterol and blood sugar levels. Polyphenols are also believed to reduce the risk of type 2 diabetes and cancer due to their antioxidant effects.

Drinking tea may help reduce blood pressure. Compounds in tea increase levels of nitrous oxide, a chemical that helps relax blood vessel walls.

Tea also contains a compound called I-theanine which has been shown to increase alpha waves in the brain. This may be responsible for reducing stress and anxiety. It is thought that the combination of I-theanine and caffeine in tea helps improve people’s focus and concentration.

If you are sensitive to caffeine or pregnant, then watching the amount of tea you drink is wise. Otherwise, three to four cups a day is thought to be beneficial when part of a balanced diet.

Beware of adding too much sugar or milk though as that may reduce some of the health benefits of your favourite cuppa!