Caffeine is a central nervous system stimulant and the most consumed psychoactive substance in the world.

Caffeine blocks the action of Adenosine in the brain, making you feel increasingly tired.
- Other neurotransmitters such as Dopamine and Norepinephrine increase their activity, leading to increased alertness and energy.

Cons to taking too much Caffeine
- Increased heart rate and blood pressure
- Bad for people with pre-existing conditions such as hypertension.
- Dehydration
- Insomnia, anxiety, and jitteriness

Benefits of Caffeine
- Helps to increase metabolism and equates to burns more calories.
- Helps to suppress appetite, which means less calorie intake.
- Can help to improve physical performance, endurance, and power output during exercise.

The recommended intake of 400mg daily is roughly the amount in 4 cups of brewed coffee.
- Caffeine tolerance can vary from person to person.

#caffeine #weightloss #metabolism

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