They surveyed 288 people for nine months and found that in seven out of 10 cases anxiety was making hair loss worse.
Last year, she said, her group surveyed 10,000 people in 18 of India's 26 states.
The center surveyed 1,501 people ages 14 to 22 and found that more high school and college students were playing cards.
The poll surveyed 1,153 people, of whom 925 said they were registered to vote.
In 2001, the agency surveyed more than 200,000 people and asked them, among other questions, whether they had a gun in or near the home.
Gallup surveyed 614 homeowners and 608 people who have not bought a home.
The poll was conducted by phone and surveyed 1,200 people.
His company just surveyed nearly 100,000 people in North America to learn more about their investing habits.
They surveyed 27,000 people over a four year period to obtain the results.
Last year, the magazine surveyed 522 people planning to buy newly built houses and asked them to rate design features.