hygiene

Because of advances in transporting ourselves quickly across the world, contagious diseases can be easily spread.

It's a curious fact of life that the older we get, the more we become like babies. Indeed, many of us can look forward to a future in diapers without any hair or teeth. 

Hand sanitizers are ubiquitous. They are used by staff in hospitals, and many people keep a small bottle of hand sanitizer in their bags or purses.

Health officials have suspected that poor oral h