He said the best way to avoid colds was to stay healthy by exercising and eating a balanced diet.

BBC: Camomile tea produced changes in the body

And we have to figure out what we can all do together in this country to help our kids in the country live healthy and active lives, and to stay that way throughout your entire lives.

WHITEHOUSE: Let's Move Rally in Jackson, Mississippi

If you're healthy and trying to stay that way, the important tests are few and relatively low tech.

FORBES: Magazine Article