April 21, 2005
The Buzz Behind Caffeine
It Blocks A Chemical That Says Brain Cells Need To Rest
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(CBS/AP)
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How Big Is The Caffeine Buzz?
People may not realize how much caffeine they're getting, researchers reported in the Journal of the American Dietetic Association. They say caffeine must be listed as an ingredient but that Nutrition Facts labels needn't specify the amount, and that herbal caffeine sources might not be listed as an active ingredient.
A quick guide to caffeine levels:
- 8 ounces of brewed coffee: 135 milligrams
- 8 ounces of tea: 50 milligrams
- 12 ounces of Coca-Cola: 34.5 milligrams
- 12 ounces of Diet Coke: 46.5 milligrams
Sleep Problems Common
Many people have trouble falling or staying asleep, and caffeine isn't the only culprit. "Insomnia and sleep loss are very common problems," says Greene.
"In addition, all the major psychiatric disorders — including depression, schizophrenia, and posttraumatic stress disorder — have sleep disruption as a prominent symptom," he continues.
If you have trouble sleeping, you may want to talk to your doctor about it. Possibly, you could be referred to a sleep clinic for diagnosis.
You might also consider whether stress, illness, or medications are factors. Getting too much caffeine or alcohol and keeping irregular hours can also make sleep suffer.
Tips For Better Sleep
If medical problems aren't causing sleep trouble, these "sleep hygiene" tips might help:
- Stick to a regular bedtime schedule. Get out of bed at the same time each morning (even on weekends and holidays).
- Avoid napping during the day.
- Avoid stressful activities and vigorous exercise for two hours before going to bed.
- Before going to bed, try relaxation techniques, such as deep breathing, yoga, or meditation.
By Miranda Hitti
Reviewed by Brunilda Nazario, MD
© 2005, WebMD Inc. All rights reserved.
Best-selling author Mitch Albom on his first nonfiction work since "Tuesdays with Morrie."
