A 10-year study released this week finds that though kids are not drinking more caffeine overall, they're now choosing less soda and more coffee and energy drinks.
Experts say these new sources have more caffeine per serving.
This week, the U.S., partnered with more than 25 countries and several international organizations, and launched the global health security agenda, an initiative to combat the spread of deadly diseases and the threat of bioterrorism.
In our globally connected world, an outbreak anywhere in the world - be it flu, tuberculosis or Ebola - is only a plane ride away, say experts.
The initiative will focus on improvements in prevention, detection and rapid response of disease outbreaks.
And with all the outbreaks of norovirus on cruise ships in recent years, you may be surprised to learn cases among sailors are rare.
The difference is military discipline.
The ships are scrubbed from stem to stern every day.
Medical staff inspects the galley constantly, looking for everything from dirt to expired food.
If a sailor does get sick, he's quickly isolated.
Social interaction may be part of a cruise, but it also helps a virus spread quickly.
Copyright 2015 Nexstar Broadcasting, Inc. All rights reserved. This material may not be published, broadcast, rewritten, or redistributed.