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VOF News 16/01/2015
For many people, having a cup of coffee right out of bed is the best way to start a day. But a report from Asap Science says otherwise. It says the worst time for coffee is soon after we get up.
When we wake up, our bodies start to make cortisol. Cortisol helps us to think clearly and be quick to understand and act. The cortisol levels rise after we wake up and climb to the highest in about an hour. So there are two problems when we drink coffee during this time: (1) our bodies will make less cortisol, and (2) the cortisol will make coffee less useful. And that’s why some of us drink more and more coffee.
Then, when’s the best time to have coffee? When the cortisol levels are going down, the report says. Cortisol levels are usually highest between 8 a.m. and 9 a.m., between noon and 1 p.m., and between 5:30 p.m. and 6:30 p.m. So if you want to have coffee, enjoy it after these times, and this popular drink will help you the most.

29.Which idea is talked about in the news?
(A) How often we should drink coffee.
(B) What happens when we have too much coffee.
(C) How to help the body make the cortisol we need.
(D) What happens when we have coffee at the wrong time.