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.
Problems can cause abnormal heart rhythms, called arrhythmias. There are many types of arrhythmia. During an arrhythmia, the heart can beat too fast, too slow, or it can stop beating. Sudden cardiac arrest (SCA) occurs when the heart develops an arrhythmia that causes it to stop beating. This is different than a heart attack, where the heart usually continues to beat but blood flow to the heart is blocked. There are many possible causes of SCA.