The question of psychophysiological reactivity of borderline hypertensives is still controversial. Methods: Young males with borderline blood pressure levels and normotensive controls were recruited during a routine examination. Samples of study I comprised 19 subjects, samples of study II18 subjects. Two stressors were presented (distressing movie, mental arithmetic), each followed by a recovery phase. Systolic and diastolic blood pressure, heart rate, and elec-trodermal parameters were assessed repeatedly. Results: Borderline hypertensives showed greater reactions to stressors in systolic blood pressure only. Changes in percentage of baseline levels were essentially the same. Recovery after stress did not differ between groups. Conclusion: Only moderate support is given to the hypothesis that borderline hypertensives show increased and slowly recovering psychophysiological responses.

The effect of hypophysectomy and of a successive treatment with LTH and STH on growth and weight gain was investigated in pigeons, 2-6 weeks of age. LTH stimulates as well as STH the growth retarded by hypophysectomy. Either hormone not only prevents the decrease of body weight caused by hypophysectomy but even produces an evident increase. The growth: weight-ratio approximates better to the value of normally developed animals in case of LTH-treatment than in case of STH-treatment.