Thanks to its high levels of antioxidants and beneficial nutrients, it also seems to be quite healthy.
Studies show that caffeine consumers have a much lower risk of several serious diseases and a lot of health benefits such as:
caffeine can help people feel less tired and increase energy levels (1Trusted Source, 2).
That’s because it contains a stimulant called caffeine — the most commonly consumed psychoactive substance in the world (3).
After you consume caffeine, the caffeine is absorbed into your bloodstream. From there, it travels to your brain (4).
In the brain, caffeine blocks the inhibitory neurotransmitter adenosine.
When this happens, the amount of other neurotransmitters like norepinephrine and dopamine increases, leading to enhanced firing of neurons (5Trusted Source, 6Trusted Source).
Many controlled studies in humans show that coffee improves various aspects of brain function — including memory, mood, vigilance, energy levels, reaction times and general mental function (7Trusted Source, 8, 9).
2. Can Help You Burn Fat
Caffeine is found in almost every commercial fat-burning supplement — and for good reason. It’s one of the few natural substances proven to aid fat burning.
Several studies show that caffeine can boost your metabolic rate by 3–11% (10Trusted Source, 11Trusted Source).
Other studies indicate that caffeine can specifically increase fat burning by as much as 10% in obese individuals and 29% in lean people (12Trusted Source).
3. Improve mental performance and function
Caffeine and Mental Performance
The caffeine acts as a mild stimulant to the central nervous system. Studies have shown that, depending on level of intake, caffeine can help to improve mental performance, especially on alertness, attention and concentration.
3. Can Drastically Improve Physical Performance
Caffeine stimulates your nervous system, signaling fat cells to break down body fat (13Trusted Source, 14).
But it also increases epinephrine (adrenaline) levels in your blood (15Trusted Source, 16Trusted Source).
This is the fight-or-flight hormone, which prepares your body for intense physical exertion.
Caffeine breaks down body fat, making free fatty acids available as fuel (17Trusted Source, 18).
Given these effects, it’s unsurprising that caffeine can improve physical performance by 11–12%, on average (20Trusted Source, 29Trusted Source).
Therefore, it makes sense to consume caffeine about half an hour before you head to the gym.
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4. Can Fight Depression
Depression is a serious mental disorder that causes a significantly reduced quality of life.
It’s very common, as about 4.1% of people in the US currently meet the criteria for clinical depression.
In a Harvard study published in 2011, women who consumed bigger doses of caffeine per day had a 20% lower risk of becoming depressed (38Trusted Source).
Another study in 208,424 individuals found that those who drank 4 or more cups per day were 53% less likely to die by suicide (39Trusted Source).
The Bottom Line
caffeine is a highly popular around the globe that boasts a number of impressive health benefits.
Not only can your daily dose help you feel more energized, burn fat and improve physical and mental performance, it may also lower your risk of several conditions, such as type 2 diabetes, cancer and Alzheimer’s and Parkinson’s disease.