A pyrogen is a substance that induces fever. These can be either internal (endogenous) or external (exogenous) to the body. The bacterial substance lipopolysaccharide (LPS), present in the cell wall of some bacteria, is an example of an exogenous pyrogen.
Kenya is a major producer of tea and coffee. Within the country, coffee is mostly drunk instant and it is not as popular as tea or Chai. Most Kenyans brew their tea with milk and lots of sugar, serving it scalding hot and very sweet. Lager is also popular in Kenya, with local brands made using cornstarch and sugar, as well as the more traditional ingredients of water, malt and hops.
What do people in Beijing like to eat? For the Chinese, eating is an important part of daily life. Breakfast and lunch are particularly important meals, so the body can keep going for the rest of the day. Traditional breakfast consists of corn or rice porridge with pickles, but roadside stalls offer much more variety. Lunch is heartier still, with a range of meat and vegetables accompanied by rice or noodles.