President Dwight D. Eisenhower announced the Eisenhower Doctrine in January 1957, and Congress approved it in March of the same year.
Tribulus terrestris is an annual plant in the Caltrop Family (Zygophyllaceae) widely distributed around the world, that is adapted to grow in dry climate locations in which few other plants can survive.It is an invasive species in North America.ne study found that administration of Tribulus terrestris extract can produce statistically significant increases in levels of testosterone, dihydrotestosterone and dehydroepiandrosterone, and produces effects suggestive of aphrodisiac activity.
1 Developing research suggests a tribulus extract taken by mouth might reduce symptoms of angina. 2  Eczema (atopic dermatitis). 3  Tribulus taken by mouth in combination with 9 other herbs (Zemaphyte) might reduce redness and skin outbreaks in adults and children with a certain type of eczema called nonexudative atopic eczema.umor has it that tribulus is also known as puncture vine because the spines are so sharp they can flatten bicycle tires. People use the fruit, leaf, and root as medicine for wide-ranging complaints.