Dangers
In rare cases, yarrow can cause severe allergic skin rashes; prolonged use can increase the skin's photosensitivity. This can be triggered initially when wet skin comes into contact with cut grass and yarrow together.
In one study, aqueous extracts of yarrow impaired the sperm production of laboratory rats.
Read more about this topic: Achillea Millefolium
Famous quotes containing the word dangers:
“One of the dangers of the American artist is that he finds himself almost exclusively thrown in with persons more or less in the arts. He lives among them, eats among them, quarrels with them, marries them.”
—Thornton Wilder (1897–1975)
“We are willing enough to praise freedom when she is safely tucked away in the past and cannot be a nuisance. In the present, amidst dangers whose outcome we cannot foresee, we get nervous about her, and admit censorship.”
—E.M. (Edward Morgan)
“The chief reason warfare is still with us is neither a secret death-wish of the human species, nor an irrepressible instinct of aggression, nor, finally and more plausibly, the serious economic and social dangers inherent in disarmament, but the simple fact that no substitute for this final arbiter in international affairs has yet appeared on the political scene.”
—Hannah Arendt (1906–1975)