Describe the physiological effects of caffeine
Caffeine is a central nervous system stimulant that affects the brain, lungs, liver, heart, and other organs. When consumed, it increases the levels of the hormones epinephrine and norepinephrine, which increases blood pressure, heart rate, and breathing rate, as well as promoting metabolism and reducing appetite. Caffeine can also temporarily improve alertness, enhance focus, and boost mood by affecting the neurotransmitters serotonin and dopamine. However, it can also produce negative effects such as anxiety, sleep disturbances, and a jittery feeling.
Caffeine is a stimulant that can have different effects on different people. It can increase alertness, decrease fatigue, and improve focus and performance, especially when taken in the morning. It also boosts metabolism, increases blood pressure and heart rate, and can affect the body's sugar levels. The most common side effects of caffeine include headaches, jitters, upset stomach, and sleep disturbances. In larger amounts, caffeine can lead to dehydration and malnutrition, as well as cardiovascular effects and anxiety.