EDUCATION

5 health mistakes you make every day

Zahnarzt Stefan Gottschalk fuehrt am Montag, 19. Maerz 2007, in Koeln die Benutzung einer elektrische Zahnbuerste mit kleinen neuenartigen Meisseln vor. Vom 20. bis 24. Maerz treffen sich Zahnspezialisten aus aller Welt zur Internationalen Dental-Schau in den Koelner Messehallen. Ueber 1.700 Aussteller aus 50 Laendern zeigen auf der weltgroessten Messe fuer Zahnmedizin die neuesten Techniken um Zahnbehandlung, und Zahnersatz. (AP Photo/Martin Meissner) ---Dentist Stefan Gottschalk demonstrates the use of an electronic toothbrush at the dental show in Cologne, Germany, Monday, March 19, 2007. More than 1,700 exhibitors from 50 countries show the latest dental medicine technology from March 20 through 24, 2007 at the world's leading dental fair. (AP Photo/Martin Meissner)

Zahnarzt Stefan Gottschalk fuehrt am Montag, 19. Maerz 2007, in Koeln die Benutzung einer elektrische Zahnbuerste mit kleinen neuenartigen Meisseln vor. Vom 20. bis 24. Maerz treffen sich Zahnspezialisten aus aller Welt zur Internationalen Dental-Schau in den Koelner Messehallen. Ueber 1.700 Aussteller aus 50 Laendern zeigen auf der weltgroessten Messe fuer Zahnmedizin die neuesten Techniken um Zahnbehandlung, und Zahnersatz. (AP Photo/Martin Meissner) ---Dentist Stefan Gottschalk demonstrates the use of an electronic toothbrush at the dental show in Cologne, Germany, Monday, March 19, 2007. More than 1,700 exhibitors from 50 countries show the latest dental medicine technology from March 20 through 24, 2007 at the world's leading dental fair. (AP Photo/Martin Meissner)  (AP)

7 A.M. You Brush Just After Breakfast

Brushing after eating acidic foods-especially fruit and juice-can weaken enamel, says Mark Wolff, of NYU College of Dentistry. That may lead to discoloration or greater odds of cracks and chips.

Rinse And Wait: Didn't brush before eating? Swish with water and wait 40 minutes for the calcium in your saliva to remineralize weakened areas. Then brush. 

Diagnose every pop, crack, and whistle before they become something worse with these 6 Weird Body Noises Explained.

8:30 A.M. You Commute with the Windows Open

Air pollution on highways can be up to 10 times what it is in the burbs, says Scott Fruin, an environmental health researcher at USC. Diesel fumes may contribute to headaches, cancer, and heart disease.

Recirculate: Shut the windows and hit "recirc" on your AC. Doing this can cut your particulate pollution exposure fourfold, one of Fruin's studies found.

1 P.M. You Microwave Your Lunch in Plastic

BPA-free? It's better, but not perfect. Phthalates can still leach into your food, potentially damaging sperm and altering hormones, says Germaine Buck Louis, a director at the National Institutes of Health.

Bet On Glass: Transfer food to glass before nuking it, or warm it on the stove at home and pack it in a stainless-steel thermos to keep it hot. 

Frozen entrees can help you avoid overeating because the calorie-control work is done for you. These Best Frozen Meals for Guys are rich in protein and fiber—and actually taste good.

7:30 P.M. You Drive Home After Happy Hour

People with a blood alcohol concentration (BAC) of just .01 percent-well below the .08 legal limit-are 46 percent more likely to cause a crash than drivers who are totally sober, a UC San Diego study reveals.

Chew Before Brews: Cut your BAC by 30 percent by eating beforehand, says Aaron White, of the National Institute on Alcohol Abuse and Alcoholism.

10.30 P.M. You Check Your Work E-Mail Before Bed

Managers who use their smartphone for work after 9 p.m. wake up groggy, a University of Florida study found. And a large Singaporean study shows that too little sleep can raise your odds of dying of stroke.

Power Down: Keep the charging station out of the bedroom, and turn off e-mail notifications after 9 p.m. If it's an emergency, someone will call.

Set your body on snooze control with this guide to Sleep Right, Tonight.