Heart and Circulatory System
1 AnswerBlocked arteries can occur in cardiovascular disease. If your test results show one or more blockages in the arteries that supply blood to your heart muscle, your cardiologist may recommend that you undergo a procedure to restore the flow of blood. Depending on the severity and location of your blockages, he or she will recommend either an interventional procedure, such as balloon angioplasty and stenting, or bypass surgery.
1 AnswerYou will probably recognize the main arteries in the human body:
- the aorta the main artery coming out of the heart
- coronary arteries in the heart
- the carotid artery in the neck.
Each artery is made up of three layers:
- a smooth layer on the inside
- a thick layer of muscle in the middle
- a rough layer on the outside.
1 AnswerArteries are strong tubes, or vessels, that carry blood from your heart to the rest of your body. Arteries transport blood containing oxygen and nutrients to smaller tubes called arterioles, which then deliver blood to even smaller vessels called capillaries. Capillaries are tiny, thin blood vessels that allow oxygen and nutrients to flow to nearby tissue. The tissue extracts the nutrients and oxygen from the blood.
After the oxygen and nutrients have been delivered to the body’s tissues by the capillaries, another network in the body, made up of venules and veins, carries this oxygen-depleted blood back to the heart.
The arteries throughout the body support many systems and are critical to your cardiovascular health and many other functions of your blood, including nutrient delivery.
Your arteries are strong and flexible, but they can become less effective over time. A substance called plaque can build up in the arteries, restricting blood flow and ultimately stopping or blocking it altogether. This plaque can cause serious cardiovascular disease that leads to heart attack, stroke, peripheral artery disease or renal artery disease.
1 AnswerMost people never give much thought to their heart and arteries until something goes wrong. This is a testament to how seamlessly the heart and arteries function as part of your cardiovascular system. Every day the heart pumps 2,000 gallons of blood through blood vessels to carry critical oxygen and nutrients to all parts of the body and remove waste products. This all takes place while you are working, sleeping, shopping and exercising - during everything that you do.
1 AnswerRealAge answered
Ready to raise your glass to a new year? Red wine is one of the healthiest tipples you can toast with. But certain reds may be better than others.
According to Joseph Maroon, MD, author of The Longevity Factor, pinot noir, merlot, grenache, cabernet sauvignon and wines made with tempranillo grapes have the most resveratrol -- that uberhealthful grape phenol with disease-thwarting, longevity-boosting powers.
New research suggests that champagne also may be a healthy spirit choice because it's made from red pinot noir grapes in addition to white grapes. And red grapes tend to have higher concentrations of resveratrol.
1 AnswerJoel Fuhrman, MD, Family Medicine, answeredWe get heart-healthy fats in their natural, high-antioxidant environment when we eat raw seeds and nuts. Indeed, avocado, nuts, and seeds are rich in fat. They may even contain a small amount of saturated fat, but their consumption is linked to substantial protection against heart disease.
Find out more about this book:Eat for Health: Lose Weight, Keep It Off, Look Younger, Live Longer (2 Volume Set)
1 AnswerMichael Roizen, MD, Internal Medicine, answeredUse this calculator only if you are physically active on a regular basis. If you're just starting an exercise program, work with your doctor to find a safe target heart rate.
To calculate your heart rate recovery time, you'll need:
- A watch or clock with a second hand
- Pencil and paper
- A place to exercise
Use the chart below to find the target heart rate for your age group (age: target heart rate zone during exercise in heartbeats per minute; target heart rates are based on 60%-80% of estimated maximum heart rates, 220 minus age).
- 20-29: 120-160
- 30-39: 114-152
- 40-49: 108-144
- 50-59: 102-136
- 60-69: 96-128
- 70-79: 90-120
- 80-89: 84-112
- 90-99: 78-104
- 100 or older: 72-96
Place one or two fingertips (not a thumb) on the opposite wrist, just below the base of your thumb. Count the number of heartbeats you feel in 10 seconds. Multiply that number by six to get your heart rate per minute.
Step 2: Complete your fitness activity.
The goal here is to increase your heart rate, so choose an activity that's going to get your heart pumping. Go for a brisk walk or run around the block, jump rope, use an elliptical trainer, or do any activity that will increase your heart rate.
While you're exercising, check your heart rate frequently. You're aiming to hit your target heart rate from the chart above.
Once your heartbeat is within the target range, stop exercising and write down two measurements:
1. Your heart rate immediately after stopping
2. Your heart rate 2 minutes later
Step 3: Calculate your heart rate recovery.
Subtract your 2-minute heart rate from the heart rate you took immediately after exercising. The faster your heart rate recovers -- or slows down -- the fitter and healthier your heart.
1 AnswerThe Society of Thoracic Surgeons answeredDiseased heart valves may cause shortness of breath, weakness, dizziness, fainting, swelling, palpitations, and chest tightness. Cardiothoracic surgeons can replace or repair heart valves to relieve symptoms and prolong life.
1 AnswerThe Society of Thoracic Surgeons answeredRecent breakthroughs in valve technology include the minimally invasive transcatheter aortic valve replacement (TAVR), a procedure that has shown great promise during its early use in both Europe and selected US centers. Other techniques on the horizon include minimally invasive procedures that allow for the surgical removal of diseased valves, replacing them with valves that require no sutures and thus may be inserted more quickly.
1 AnswerRealAge answered
Eating more tomato-based foods can boost your protection against heart disease. Experts think this is partly thanks to lycopene (a red-pigmented phytonutrient in tomatoes), which appears to have antioxidant and anti-inflammatory effects. "Tomatoes are a good source of potassium and vitamin C, but there's also some evidence that lycopene and other carotenoids, along with vitamins A, C, and E in tomatoes, may help reduce bad (LDL) cholesterol oxidation, which plays a key role in plaque buildup in the blood vessels and can lead to atherosclerosis," explains Wendy Bazilian, DrPH, RD, author of The SuperFoodsRx Diet and nutrition advisor at Golden Door fitness resort and spa in Escondido, California.
Eating processed tomatoes, such as low-sodium tomato sauces, juices, soups, and canned tomatoes, enhances your body's absorption of lycopene. Adding olive oil to your tomato sauce will help your body absorb even more. "That's food synergy at its best," Bazilian says. "Two whole foods that have nutritional attributes and benefits of their own, but provide an added benefit when combined."