The researchers found only a small health benefit in drinking two decaffeinated cups of coffee per day. And they found that tea drinkers did not have a reduced risk of cancer even though tea -- especially green tea -- is known to help human health in other ways.
Janet Hildebrand says coffee is thought to have substances that benefit the human body.
“Two compounds for example have been studied for their anti-cancer properties, and they have been found to possibly help regulate cell replication and to, sort of, prevent proliferation.”
Ms. Hildebrand says she and other researchers would like to know whether coffee drinking helps people who already have oral and pharyngeal cancers.
The study describing how coffee consumption can reduce the risk of oral and pharyngeal cancer was published in the American Journal of Epidemiology.
Scientists in England and Ethiopia are warning that coffee could be a victim of rising temperatures in Earth’s atmosphere.
About 70 percent of all commercially-grown coffee is Arabica coffee. Although Arabica coffee is grown on plantations around the world, it only grows naturally in the highlands of southern Ethiopia. It is very sensitive to climate changes. But the wild plants have a genetic diversity that growers use to improve the cultivated crop -- which does not react well to climate change.
The scientists work at London’s Royal Botanic Gardens at Kew and the Environment and Coffee Forest Forum in Ethiopia. They have finished the first computer model of the influence of climate change on wild Arabica. The model shows problems for coffee plants for the rest of this century. The scientists predict Arabica could disappear in at least one area within ten years because of climate change, deforestation, habitat loss or agriculture pressure.
最新
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25
2013-11-25