The crisis period began to unfold as a result of events at the end of the 1960s. It was during this time that petroleum production in major producers like the United States and some other parts of the world peaked.Subsequent to the Seventies, world oil production per capita peaked.he two worst crises of this period were the 1973 oil crisis and the 1979 energy crisis, caused by interruptions in exports from the Middle East, for example in 1979 due to the Iranian Revolution.
Good question. Here are several reasons why teens should be concerned about heart disease: 1  About one-third of young people ages 10 to 19 have blood cholesterol levels that are too high-this is a risk factor for developing heart disease.
Fainting is pretty common in teens. The good news is that most of the time it's not a sign of something serious. When someone faints, it's usually because changes in the nervous system and cause a temporary drop in the amount of blood reaching the brain. When the blood supply to the brain is decreased, a person loses consciousness and falls over.