1 In the interests of safety and hygiene please ensure that your Thermos flask is cleaned with warm water and washing-up liquid prior to initial use.  For best results from your flask, before use, pre-fill for about 3 minutes, using either hot water for hot drinks or cold water for chilled drinks.
Extrapolating these findings to the general population, the authors estimated that 8 million elderly persons nationwide have insomnia on any given day, more than 1 million new cases of insomnia develop each year, and symptoms resolve in nearly 1.3 million elderly persons annually.
Nearly 17 million people in the United States have acne, making it the most common skin disease. (Source: excerpt from Questions and Answers About Acne: NIAMS) More Statistics about Acne: Hospitalization statistics; All statistics for Acne About prevalence and incidence statistics: The term 'prevalence' of Acne usually refers to the estimated population of people who are managing Acne at any given time. The term 'incidence' of Acne refers to the annual diagnosis rate, or the number of new cases of Acne diagnosed each year.