Unlike a cup of Joe, tea contains the amino acid theanine, which may improve attention and alertness, say Lakatos and Shames. And you’ll still get a little boost from caffeine (about 35 to 50mg per cup compared to the 100 to 140mg in a cup of coffee). Just make sure you don’t drink it too close to bedtime, caution Lakatos and Shames: “You don’t want the caffeine to affect your sleep—if you can’t get a good night’s rest your energy level will be low.”
Dozing off at your desk? Instead of reaching for an elixir that touts to take your energy level off the charts, make sure your meals and snacks include these naturally energizing eats.
9. Black, Green, or Oolong Tea
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