The Exxon Valdez Oil Spill left behind a trail of dead bodies of thousands of birds and animals. One of the worst kind of disasters ever caused and seen by man, the Exxon Valdez Oil Spill affected not only the environment but also the way people dealt with the natural environment. slide 1 of 5.
Vitamin Imbalances. A deficiency in biotin, one of the B vitamins, can cause thinning hair in women -- so can being deficient in vitamin D, according to a review paper published in the June 2009 issue of the âCleveland Clinic Journal of Medicine.â Recommended dietary allowances for biotin and vitamin D are 30 and 15 micrograms per day, respectively.
1 Nutrient deficiency. 2  If you're deficient in your vitamins and minerals, your whole body will start to show it. 3  Vitamins A, E and D promote hair growth, and vitamin B mitigates bodily stress responses, which can prevent hair loss. 4  A deficiency in any of these vitamins can cause thinning eyebrows. 5  Hypothyroidism. Vitamins A, E and D promote hair growth, and vitamin B mitigates bodily stress responses, which can prevent hair loss. 2  A deficiency in any of these vitamins can cause thinning eyebrows. 3  Hypothyroidism. 4  Interestingly, an under-active thyroid can cause women to lose one-third of the hair on their eyebrows.