51�Թ�

The spleen, the thyroid, the suprarenal glands have taken on a new significance.

In emotions of various kinds a reflex action is sent to the suprarenal glands which causes a pouring into the blood of adrenin.

The suprarenal glands may function insufficiently as a consequence of the emotional poverty, since all emotions which have been experimentally studied seem to stimulate the production of adrenalin.

Also, anything that might stimulate, or that does stimulate, the suprarenal glands will cause a continued high blood pressure.

Experimental work has also demonstrated the functions of the suprarenal glands and explained the symptoms of Addison's disease, and chemists have even succeeded in making synthetically the active principle adrenalin.