Hypertension is a major world-wide health problem. With high blood pressure there is a greater risk of stroke, heart attack, heart failure, kidney disease and renal failure. Far too few people realize what the risks are and what can be done to prevent these risks even in the countries where pro- grams in hypertension research are active and the full significance of hyper- tension is best understood. Some studies of the known hypertensive popu- lation indicate that one-half or less are receiving adequate treatment, and, of those on therapy, only half have their high blood pressure...

Participation in athletics at both the recreational and competitive levels has grown enormously over the last decade, and now involves a substantial segment of the population of many countries, particularly those in Europe and North America. This change in the life-style of many individuals has been accompanied by the desire and necessity on the part of physicians to define the consequences of chronic athletic training and competition to the participant. Coincident with the of public interest in sporting competition has been the evolution and growth development of new non-invasive...