Why does coffee sometimes make me feel more tired?

Why does coffee sometimes make me feel more tired?You’re dehydrated. One of the primary reasons why coffee isn’t working usually comes down to dehydration, usually as a result of already having had too much caffeine that day.Your genes don’t respond to caffeine. …There’s a build-up of adenosine. …It needs longer to kick in. …You’re not getting enough sleep. …There’s something else going on. …

Why does coffee put some people to sleep?

Too much caffeine may cause:sleeplessnessrapid heartbeatirritabilityanxietyinsomniamuscle shakes or tremorsupset stomach

Why does coffee only make me sick in the morning?

Coffee is one of the major causes of acid reflux and heartburn. Caffeine stimulates the release of gastrin and secretion of gastric acid and may become more obvious when you take coffee in the morning on an empty stomach. The abdominal distress may make you feel nauseous. So, before you drink your favorite brew, have some food in your stomach.

Why caffeine can sometimes make you feel tired?

Why does coffee make me tired?Other effects of coffee. Coffee can affect more than a person’s energy levels. …Recommended caffeine limits. An adult should aim to consume no more than 400 mg of caffeine per day. …Summary. If drinking a cup of coffee makes a person feel tired, the effects of caffeine may be responsible. …