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.
There are many different estimates of the prevalence of epilepsy. These numbers vary depending on when the studies were done, who was included and a host of other factors. 1  The number of people with epilepsy, using prevalence numbers, ranges from 1.3 million to 2.8 million (or 5 to 8.4 for every 1,000 people).