The beans are the roasted fruit of the Coffea arabica bush, and it’s grown in about 80 countries.
Most people drink coffee because they either like the distinctive taste, or they want to caffeine buzz.
Caffeine stimulates the nervous system, heart and muscles, and helps people to feel more alert and awake.
She wrote for medical website Healthline: “Most types contain caffeine, a substance that may boost your mood, metabolism and mental and physical performance.
“However, high doses of caffeine may have unpleasant and even dangerous side effects.
“To get the benefits of caffeine without undesirable effects, conduct an honest assessment of your sleep, energy levels and other factors that might be affected, and reduce your intake if needed.”
But, generally, anything up to 400mg of caffeine each day appears to be safe for most adults.
A single cup of coffee might contain about 100mg of caffeine, so it’s advisable to avoid having more than four cups each day.
You should cut back on the amount of coffee in your diet if you frequently develop headaches, insomnia, nervousness or a fast heartbeat.
This post originally appeared on Daily Express :: Health Feed