Healthy eating for older adults Archive

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Health guidelines advise all of us to spend at least two-and-a-half hours per week in moderate-intensity activity. For many people, that means walking, which requires no special equipment or training. But even if you can't rack up those 150 minutes, establishing a regular walking routine might extend your life, suggests a study published online Oct. 19, 2017, by the American Journal of Preventive Medicine.

Researchers looked at data on nearly 140,000 adults (average age about 70) who answered questionnaires about their exercise habits over 13 years. People who were inactive were 26% more likely to die during the study period compared with people who did some walking (up to two hours per week) as their only form of activity. And people who walked more — at least two hours per week — lowered their risk even more. The study is observational and doesn't prove that walking kept people alive longer during the study. However, we know that walking is associated with a lower risk for developing high blood pressure, high cholesterol, heart disease, cancer, and diabetes. If you don't want to walk in cold weather, try walking at a mall or an indoor track at a YMCA, or use a home treadmill.

Add these simple changes to your list of New Year's resolutions.

Diet plays a huge role in the health of your heart. Yet for many people, healthy eating is a challenge. Perhaps the biggest problem is the easy access to cheap, highly processed, unhealthy junk food. But conflicting and confusing nutrition advice from popular books, blogs, and other sources is a close second. And chances are your doctor has neither the time nor the training to give you sound nutrition advice.

"People also think that changing their diet requires a major overhaul," says Dr. JoAnn Manson, professor of medicine at Harvard Medical School and chief of preventive medicine at Brigham and Women's Hospital. "But the reality is that a few small changes can go a long way toward improving your eating habits," she says. See "Diet swaps for a healthier heart" for a summary of these suggestions, taken from a piece she coauthored in the Sept. 26, 2017, Journal of the American Medical Association.

Research we're watching

New research supports the old adage that breakfast is the most important meal of the day. A study of more than 4,000 middle-aged adults in Spain found that those who ate breakfast were less likely to have artery-clogging plaque (atherosclerosis) than those who avoided a morning meal.

On average, the participants ate just over 2,300 calories per day. Nearly 3% didn't eat breakfast, while about 27% ate a hearty breakfast and nearly 70% ate a skimpier breakfast. Researchers used ultrasound to check their arteries for early evidence of atherosclerosis, as they described in the October 2017 Journal of the American College of Cardiology.

In the journals

People who take prescription drugs do not always know about side effects that could increase their risk of driving accidents, suggests a study published online Oct. 31, 2017, by the Journal of Studies on Alcohol and Drugs.

Researchers asked 7,405 drivers about their prescription drug use. Nearly 20% used medication that could affect their driving skills — for example, by causing drowsiness or impairing cognitive or motor function — yet almost all were unaware of these potential side effects. Either they did not receive or remember a warning from their doctor or pharmacist, or they did not recognize or recall a warning on the drug label.

Being vigilant about what you're taking can reduce your risk of a harmful drug reaction.

There's an old expression that the cure is sometimes worse than the disease. That rings true when it comes to a common problem in health care — medication errors.

Medication mix-ups and mistakes sometimes lead to harmful drug reactions, which cause about 700,000 emergency department visits and 100,000 hospital admissions each year, according to the Agency for Healthcare Research and Quality.

Ask the doctors

Q. What's the best time of day to exercise to get the most benefit?

A. Some people swear by morning workouts, because they squeeze them in before a busy schedule can derail their efforts. Morning exercise sessions may also help them move into their day feeling energized. But others dread the idea of dragging themselves out of bed early to hit the treadmill. Instead, they save their workout until the end of the day, when they feel more limber and can unwind.

Keeping active in the winter months is crucial for wellness.

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Workouts often fall by the wayside in winter. It's cold and snowy, and if you're like a lot of women, all you want to do is curl up under a blanket with a cup of hot tea and snack on some leftover holiday cookies.

"Based on my experience with clients, it seems like people go into hibernation mode from Thanksgiving until March," says Dr. Beth Frates, assistant professor of physical medicine and rehabilitation at Harvard Medical School and director of wellness programming for the Stroke Research and Recovery Institute at Spaulding Rehabilitation Hospital.

Research we're watching

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A new test might help doctors better treat patients with urinary tract infections, according to a study published in the Oct. 4, 2017, issue of Science Translational Medicine. These infections prompt some eight million doctor visits each year, and doctors often prescribe antibiotics to treat the condition. However, sometimes the bacteria they are attempting to treat are resistant to first-line antibiotics. The delay caused by the ineffective medication can, in some cases, cause the patient's condition to worsen and lead to complications. To eliminate this antibiotic guesswork, researchers developed a new quick-acting antimicrobial susceptibility test that not only tells the doctor within 30 minutes whether the patient has a urinary tract infection, but also what type of bacteria caused it and what drugs will best treat it. The test can also quickly identify cases where antibiotics aren't needed at all, preventing overuse of antibiotics, which can promote resistance. The same type of rapid testing, might eventually be of use in identifying the best anti-biotics for other types of bacterial infections as well.

Research we're watching

You've heard of the Grammys and the Emmys, but how about the MilliGrammys? This satirical award is given by the Center for Science in the Public Interest (CSPI) to the American restaurant foods that give you the biggest dose of sodium in one serving. On Oct. 11, 2017, the organization gave the award for Sodium Content in a Sandwich by a Chain Restaurant to Subway's Footlong Spicy Italian with Provolone and Mayo, with 3,380 milligrams (mg) of sodium, 1,080 mg more sodium than you're supposed to eat in an entire day. Most Sodium in a Single Menu Item went to P.F. Chang's Pad Thai with Shrimp (5,250 mg of sodium), and Chili's restaurant received a Lifetime Achievement Award for a trio of high-salt offerings, including the Beef Bacon Ranch Quesadilla (3,990 mg of sodium), Crispy Fiery Pepper Crispers (6,240 mg), and Texas Dry Rub Ribs (6,260 mg).

CSPI's goal is to raise awareness and get restaurants to curb high sodium levels in their food. To learn more about the awards, visit www.health.harvard.edu/mga.

Your range of motion — how far you can move a joint in various directions — is determined by many things, starting with the inner workings of the joint and the structures surrounding it. Stretching exercises can help extend this range of motion. To understand how, it helps to be familiar with these structures and how they can help — or hinder — a joint's flexibility:

• Joints are the junctions that link bones together. The architecture of each joint — that is, whether its structure is a hinge, pivot, or ball-in-socket — determines how the bones can move.
• Muscles surround joints and provide the energy used to move them. The amount of tension in the muscles surrounding a joint is a key factor in how big of a range of motion that joint can achieve. Muscle tension can be affected both by passive factors, such as tissue scarring or your habitual posture, and by active factors, such as involuntary muscle spasms or purposeful muscle contractions.
• Tendons are flexible cords of strong tissue that connect muscles to bones and make movement possible. When a joint moves, energy from the muscles is transferred into the tendons, which tug on the bones.
• Ligaments are tough, fibrous bands of tissue that bind bone to bone, or bone to cartilage, at a joint. An example is the anterior cruciate ligament (ACL), one of five ligaments that together control the movements of the knee. Among other things, the ACL keeps the knee joint from rotating too far.

When you stretch, you're working muscles and tendons rather than ligaments. Ligaments are not supposed to be elastic. An overly stretchy ligament wouldn't provide the stability and support needed for a safe range of movement.