suicidal thoughts, attempts on the rise among young people: 'it's a critical public-health crisis right now'..
chess grandmasters show the same longevity advantage as elite athletes.
hard-to-kill germs may be lurking in your hotel pool, cdc says
. and prevention says hepatitis a is a vaccine-preventable, communicable disease of the liver caused by a virus. it is usually transmitted person-to-person or by consuming.