Researchers in the largest high-blood-pressure clinical trial ever conducted are launching a comprehensive outreach program to improve blood pressure control nationwide.

"Going to the dogs" may be a good thing—when it comes to healthcare, anyway. New data reported at the American Heart Association's Scientific Sessions 2005 show that a 12-minute visit with man's best friend helped lower pressures in the heart and lungs.

Previous research suggests that daytime BP values are lower in hot months than in cold months. In a recent study, however, warmer nighttime air temperatures were linked to higher BPs at night in those over age 65 taking medicines to lower BP.

Taking steps to reduce cholesterol may also help people lower their risk of developing hypertension. Recent research by Dr. Howard Sesso and colleagues at Harvard Medical School shows that climbing cholesterol counts seem to precede the onset of high blood pressure.

Dear Dr. SerVaas: I have heard that some decongestants and cold medications can raise one's blood pressure. Which products should I avoid?

Dear Dr. SerVaas: Some time ago I read that it is not healthy to have a great difference between the upper (systolic) and lower (diastolic) blood pressure readings. Mine is often 120/ 45 or 129/50. Would you tell me why this is not good?

The FDA recently approved a new nondrug therapy to reduce high blood pressure. Resperate, made by InterCure, guides the user through an exercise that slows the breathing to less than 10 breaths per minute.

Dear Dr. SerVaas: I am interested in knowing more about the DASH diet mentioned in the March/April 2002 "Medical Mailbox." I am currently taking medications to control my high blood pressure and high cholesterol. I would certainly love to get off these medications, if at all possible.