The text is about the effects of quitting coffee on the body and mind. A possible concise summary is:
Quitting coffee can cause withdrawal symptoms such as headaches, fatigue, irritability, and depression, but also benefits such as lower blood pressure, healthier skin, and better sleep. The symptoms can last for a few days to a few weeks, depending on how much coffee one used to drink. Coffee is an addictive drug that alters the brain's chemistry and hormone levels, but the body can recover and adjust to its absence. Coffee does not affect bone health or growth, but it can stain teeth and suppress appetite. Moderation is key, and replacing coffee with calcium-rich drinks can help improve bone health.
Here are some key facts extracted from the text. I have numbered them and kept them short sentences.
1. Coffee is addictive because of caffeine, a chemical that increases dopamine and blocks adenosine in the brain.
2. Caffeine withdrawal can start 12 hours after the last cup of coffee and last for nine days.
3. Caffeine withdrawal symptoms include headache, shaking, irritability, anxiety, fatigue, constipation, and depression.
4. Quitting coffee can lower blood pressure, improve sleep quality, brighten teeth, and balance hormone levels.
5. Quitting coffee does not affect bone health or growth, but replacing it with calcium-rich drinks can help prevent osteoporosis.
6. The recommended daily intake of caffeine is 200 milligrams or less, which is about one or two cups of coffee.