Why Does Coffee Make Me Sleepy Instead of Giving Me Energy?

Caffeine is one of the stimulants that have the ability to increase alertness and boost energy levels, but it doesn’t cause drowsiness. However, it’s a very complex beverage and at times, consuming it could make you feel exhausted. We have the explanation of why coffee could make you sleepy and a little fatigued.

When the Caffeine Wears Off, Adenosine Will Make You Sleepy

Caffeine contains in coffee block adenosine receptors in brain to receive adenosine, that’s why the neurotransmitter causes fatigue, even though caffeine prevents your brain to receive adenosine, it doesn’t stop your body to produce neurotransmitter. So when the caffeine wears off, there’s some adenosine that will make you feel sleepy and tired.

You think caffeine is making you sleepy but it isn’t because it doesn’t impact how much adenosine your body manufacturers. But, delay the effect of adenosine you feel all at once when the caffeine is not working anymore.

Read more : best hour to drink coffee according to scientist


Sweet Coffee Will Give You a Sugar Crash

If you like your coffee sweet and maybe you like to add a bit of sugar in it, you have a chance to experience sugar crash after drinking it. Sugar is processed a lot faster than coffee and it would leave your body no energy after it’s all used up. So if you like your coffee sweet, after having it you might actually experience the sugar crash even more than the caffeine boost that you need.

Coffee Makes You Dehydrated

Dehydration is the ultimate reason why coffee makes you sleepy.

Drinking it for the sake of staying awake can quickly lead you to dehydration, which would make you tired even more. The cycle goes this way:

  1. You drink a cup of joe, soon you need to use the bathroom.
  2. Your body loses water as you go to the bathroom.
  3. When your body loses water, your blood thickens.
  4. It moves more slowly through your arteries and veins, if your blood thickens.
  5. As your blood slows down, it delivers less oxygen to your body.
  6. You become sluggish without much oxygen.
  7. At this stage you might want your coffee again, but then the cycle will start again.

People likely won’t drink water when they have their coffee, they don’t give their bodies a chance to rehydrate. Coffee is a vasoconstrictor, it makes your arteries and veins get narrower, even more difficult for yout thickening blood to flow through them.

The Effects of Coffee Is Limited By You

If coffee tends to make you sleepy, there are various things you can do to limit its fatiguing effects:

  • Lessen your coffee intake (The Mayo Clinic recommends that 400 milligrams is the limit for a day. It’s about 2 to 4 cups).
  • Don’t have it with a lot of sugar.
  • Don’t forget to drink plenty of water for your hydration.

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