Staying Healthy Archive

Ask the doctors

Q. I experienced a heart attack a few years ago. I'm worried about getting the COVID-19 vaccine. Is it safe for someone with my medical history?

A. Yes. The vaccine is safe and advised for people with a history of heart attack and cardiovascular disease. While you should always discuss the particulars of your situation with your doctor, the American Heart Association said in a statement issued on Jan. 15, 2021, that it's important for people who have had heart disease or stroke (or who are at high risk for these conditions) to get vaccinated as quickly as possible, because they are at higher risk for severe disease if infected. The benefits of the vaccine far outweigh the risks. Clinical trials of the first two approved vaccines found that both are safe and, after two injections, are about 95% effective at preventing illness from SARS-CoV-2, the virus that causes COVID-19. The vaccine often causes soreness at the injection site. Other common side effects, such as headache and diffuse muscle pain, are usually mild and last only one or two days. More severe reactions, including allergic reactions, have occurred but are very rare.

Among the Basic Practice exercises in "Intermediate Yoga," a special health report from Harvard Medical School, is this breathing exercise. "Three-part breath" is simple enough to do almost anytime and anywhere. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

"Half sun salutation" is among the Basic Practice exercises described in "Intermediate Yoga," a special health report from Harvard Medical School. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

Among the Flexibility Practice exercises in "Intermediate Yoga," a special health report from Harvard Medical School, is sun breath. The Flexibility Practice routine will help you gain more supple muscles and greater range of motion through various joints. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

"Intermediate Yoga," a special health report from Harvard Medical School, includes a Strengthening Practice routine with multiple exercises that help develop both mental and physical strength. Among them is "bellows breath." To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

The Energizing Practice routine described in "Intermediate Yoga"—a Harvard Medical School special report—involves vigorous breathing to bring more oxygen to your body and brain. The result: physical and mental energy. Breath of joy is among the featured exercises. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

"Lion's breath," because of its starting position, is also called "five-pointed star into goddess with lion's breath." It's among the Energizing Practice routines in "Intermediate Yoga," a special health report from Harvard Medical School. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

This example of a Calming Practice yoga exercise can be done any time of day. If you're anxious or worked up over a stressful situation, the ujjayi breath exercise can center and relax you. It's among dozens of exercises featured in "Intermediate Yoga," a special health report from Harvard Health Publishing. To learn additional intermediate yoga exercises, visit: www.health.harvard.edu/iy

The pleasure of eating a candy bar lasts but a few minutes. Burning off the calories it delivers can take nearly an hour. So this is definitely not a simple way to lose weight! 

To lose one pound by exercising, you need to burn approximately 3,500 calories. It can take days of moderate exercise to do this. A better strategy for weight loss involves a two-pronged approach: exercising and cutting calories.

Grapefruit can mean danger when combined with some popular drugs used for high blood pressure, high cholesterol and depression

Grapefruit and grapefruit juice are healthful, providing enough vitamin C, potassium, dietary fiber, and other nutrients to earn the American Heart Association's "heart-check" mark. That's the good news. The bad news is that grapefruit juice can interact with dozens of medications, sometimes dangerously.

Doctors are not sure which of the hundreds of chemicals in grapefruit are responsible. The leading candidate is furanocoumarin. It is also found in Seville (sour) oranges and tangelos; although these fruits have not been studied in detail, the guidelines for grapefruit should apply to them as well.