1. How many cups of coffee should not be taken?

4 - 5 glasses.

According to Dr. Tran Thi Tra Phuong, Nutrihome nutrition clinic system, Caffeine is a substance that affects nerves, in coffee, energy drinks, green tea, cocoa to increase alertness.

Caffeine consumption may bring health benefits.However, abuse of this drink is easy to sleep, the mood is uncomfortable and uncomfortable.Familiar people who drink a lot of caffeine when cutting may have a headache, dizziness, nausea, negative mood.These symptoms usually appear after about 12-24 hours from stopping.

According to the recommendations of the US Food and Drug Administration (FDA), the safe amount of caffeine daily should not exceed 400 mg.A cup or regular coffee pack has about 70-100mg of caffeine.Thus, a healthy adult should not drink more than 4-5 cups a day.

2. How long should drink coffee before bed?

6 hours.

You should also pay attention to drink coffee before bedtime about 6 hours.For example, if you sleep at 22h daily, avoid drinking coffee or other drinks containing caffeine after 16h to limit insomnia.

People with vigorously sensitive to caffeine or have specific diseases should be more cautious.The consumption may need less or advise with a doctor to use caffeine to suit health and pathological conditions.