Word: peak
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Dates: during 2000-2009
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...heart attack depends on the imbalance between increased myocardial oxygen demand (i.e., a greater need for oxygen in your heart) and decreased myocardial oxygen supply - or both. And unfortunately, some functions in the first hours of the day require more myocardial oxygen support: waking and commencing physical activities, the peak of the adrenal hormone cortisol [which boosts blood-pressure and blood-sugar levels] and a further increase in blood pressure and heart rate due to catecholamines (adrenaline and noradrenaline), which show a peak when you wake up. All those factors lead to an increase of oxygen consumption...
...these changes, however, probably are not so harmful in healthy people. But for a person with a plaque in the coronary vessel, if these changes occur at the same time and peak at the same time, the final result is a higher risk of heart attack during that specific window of morning hours...
...experimental model, in which people were instructed to stay in bed for four hours after they woke up before rising. But the same pattern simply occurred four hours after waking, because the risk is linked to our activities. We can't be afraid of the catecholamines and the peak in blood pressure in the morning. It's part of our physiology. And for healthy people, it's not a problem...
...BOTTOM LINE: An epic set recalls the legendary pianist in his peak years...
...waning of the era of riverboat building, if not its end. Jeffboat, Inc., once launched up to 15 barges a week. This barge, a grain vessel, was the last. The inland waterway fleet is overbuilt and underused, and Jeffboat, its work force reduced to 70 from a 1981 peak of 2,300, will retreat into the repair business. Jeffboat folds up what Manager John Briley of the Ohio River Museum in Marietta calls ''the last major shipyard'' on a river that once boasted one in almost every town...