Caffeine can perk you up, but exactly how much caffeine should you consume – and when should you take it – to achieve "peak" alertness?
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- Boeing's Hypersonic Vision: A Sleek Passenger Plan...
- Hawaii's Kilauea Volcano Spawned a Giant, Otherwor...
- The Most Interesting Science News Articles of the ...
- Amazing Images: The Best Science Photos of the Week
- Photos: Fruits of the Sonoran Desert
- Woman's Odd Weight Gain Turned Out to Be a 50-Poun...
- Bacterial Infections Can Cause Powerful Odor, As H...
- The 'Decapitated' Pompeii Man Wasn't Decapitated A...
- 9 Absolutely Evil Medical Experiments
- Human Sacrifices Surround Ancient Mesopotamian Tomb
- Source of E. Coli in Deadly Romaine Lettuce Outbre...
- At This Lab, 'Mad Scientists' Are Making Outlandis...
- What's the Evidence for Einstein's Theory of Relat...
- WWI POW's Romantic Engraving Discovered 100 Years ...
- Hottest Night in Recorded History Just Logged in Oman
- Teen Dies from Toxic Shock Syndrome. Why Is It Lin...
- Historic Shift Means the Arctic Ocean Could Become...
- A Gorgeous 'Blue' Sand Dune Snakes Across Mars in ...
- How Theoretical Physicists Can Help Find E.T.
- The Milky Way Is Full of Toxic, Sticky Grease
- 'German Stonehenge' Yields Grisly Evidence of Sacr...
- Once-Dreaded Poliovirus Could Treat Brain Cancer
- Flamingo Spotted in Texas, 13 Years After Escaping...
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- Photos: Vikings Accessorized with Tiny Metal Dragons
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