Enhance immune function
According to Dr. Daeung Woo, a nutritional immunologist at Tufts University, “Tea may help support the immune system and increase the body’s resistance to disease.
“If you are sick, the tea can help your body respond to the disease in a more effective way by ridding itself of the infection and may also alleviate it.”
According to Dr. Wu, the flavonoids called catechins found in green tea have been shown to help the body fight a variety of pathogens — by boosting the immune system and decreasing the effectiveness of infections.
It has also been found to help with autoimmune disorders by enhancing self-tolerance, promoting tissue repair and the inflammatory attack caused by self-antigens, he added.
Nutrition and behavior expert Professor Louise Day from the University of Leeds said: ‘There is strong evidence that tea and its ingredients appear to be beneficial under conditions of stress.
“The most profound cognitive area on which tea appears to function is attention and alertness.”
She explained that evidence from randomized controlled trials suggests that drinking tea can improve performance on both attention diversion tests and in subjective reports of wakefulness.
In particular, high doses of an amino acid called L-theanine found in both black and green tea as well as a lower dose of caffeine can be beneficial for attention-based tasks.
Professor Day added: “With such effects on attention, tea is the preferred beverage of choice during times of stress and exhaustion worldwide.”
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