Is cardio your favorite?

In a nutshell, the term aerobic means “with oxygen.” Aerobic exercise and activities are also called cardio, short for “cardiovascular.” During aerobic activity, you repeatedly move large muscles in your arms, legs and hips. Your heart rate increases, and you breathe faster and more deeply. This maximizes the amount of oxygen in your blood and ultimately helps you use oxygen more efficiently.

How well you use oxygen is called your aerobic capacity. When your aerobic capacity is high, your heart, lungs and blood vessels efficiently deliver large amounts of oxygen throughout your body. As a result, you feel more energized and don’t tire as quickly.

If you are a beginner to exercise, start with low to moderately intense cardio activities, so you can do them for long periods of time and gain many health benefits. Common examples include walking, bicycling, swimming, dancing and water aerobics, but don’t limit yourself: You can choose any activities you enjoy, such as canoeing, in-line skating, golfing or martial arts.

If you haven’t gotten enough aerobic exercise, you may use your entire aerobic capacity while walking up a flight of stairs. You’ll realize this when you get to the top and feel out of breath. But if you’re fit, you’ll have no problem because your aerobic capacity is greater. That’s just one example of how you can benefit from cardio exercise. Other benefits of cardio include:

  • Strengthen your heart and muscles
  • Burn calories
  • Help control your appetite
  • Boost your mood through the release of endorphins, which are feel-good chemicals released by your brain
  • Help you sleep better at night

No matter what your age, aerobic exercise will help you in your daily activities and increase your stamina and endurance.

Start slowly

If you’re a beginner, start slowly. You might walk five minutes in the morning and five minutes in the evening. Gradually add a few minutes to each session and then pick up the pace a bit. Soon you could be walking briskly for 30 minutes a day. Also consider any other activities that increases your breathing and heart rate.

Always include these elements in your workout:

  • Warm-up.Before each session, warm up for five to 10 minutes to gradually rev up your cardiovascular system and increase blood flow to your muscles. Try a low-intensity version of your planned activity. For example, if you plan to take a brisk walk, warm up by walking slowly.
  • At your own pace, work up to at least 30 minutes of cardio a day to develop your aerobic capacity by increasing your heart rate, depth of breathing and muscle endurance.
  • Cool-down.After each session, cool down for five to 10 minutes. Stretch your calf muscles, quadriceps (upper thighs), hamstrings, lower back and chest. This after workout stretch allows your heart rate and muscles to return to normal.

Moderate activity should cause you to breathe faster and feel like you’re working. But if you experience unusual pain or alarming symptoms during exercise, stop immediately and seek medical attention.

How well do you know your natural energy sources?

Food  supplies micronutrients, such as vitamins and minerals, which don’t provide calories but help the body with chemical reactions. In addition, food is a source of water, fiber and other essential substances. Read on to learn more about the nutrients that your body needs to stay energized.

Carbohydrates

Carbohydrates can be simple or complex. Simple carbohydrates are the sugars found in fruits, honey, milk and milk products. They also include sugars added during food processing and refining. Simple carbohydrates are absorbed quickly for energy.

Complex carbohydrates, also known as starches, are found primarily in whole grains, pasta, potatoes, beans and vegetables. Digestion is required to change complex carbohydrates into simple sugars.

Complex carbohydrates contain many vitamins and minerals as well as fiber. During processing, however, complex carbohydrates may be refined, removing many important nutrients — along with their benefits.

Fats

Fats are a natural component of various foods, and they come in different forms. The oils used in cooking are a form of fat. Fats are also found in foods of animal origin, such as meat, dairy, poultry and fish, and in such common foods as avocados, nuts and olives. Fats are a major source of energy and also help your body absorb some vitamins.

Proteins

Proteins build and repair body structures, produce body chemicals, carry nutrients to your cells and help regulate body processes. Excess proteins also provide calories. Proteins are composed of basic elements called amino acids. There are two types of amino acids: those your body can generate, known as nonessential amino acids, and those that can only be obtained from the food you eat, known as essential amino acids.

Vitamins

Many foods contain vitamins, such as A, B complex, C, D, E and K. Vitamins help your body use carbohydrates, fats and proteins. They also help produce blood cells, hormones, genetic material and chemicals for the nervous system. Deficiencies of these vitamins lead to various diseases.

During processing, foods can lose nutrients. Manufacturers sometimes enrich or fortify the processed food and add back nutrients. Fresh, natural foods, though, contain vitamins in their preferred natural state.

Minerals

Minerals such as calcium, magnesium and phosphorus are important to the health of your bones and teeth. Sodium, potassium and chloride, commonly referred to as electrolytes, help regulate the balance of water and chemicals in your body. Your body needs smaller amounts of minerals such as iron, iodine, zinc, copper, fluoride, selenium and manganese, commonly referred to as trace minerals.

Water

It’s easy to take water for granted, but it’s a vital nutritional requirement. Many foods, especially fruits, contain a lot of water. Water plays a role in nearly every major body function. It regulates body temperature, carries nutrients and oxygen cells via the bloodstream and helps carry away waste. Water also helps cushion joints and protects organs and tissues.

 

Fiber

Fiber is the part of plant foods that your body doesn’t absorb. The two main types are soluble and insoluble, and fiber-rich foods usually contain both.

Foods high in soluble fiber include citrus fruits, apples, pears, plums and prunes, oatmeal and oat bran, and barley. Legumes, such as dried beans and peas, are also high in soluble fiber. This type of fiber helps lower blood cholesterol, slows the rise in blood sugar and adds bulk to stools.

Insoluble fiber is found in many vegetables, wheat bran, and whole-grain breads, pasta and cereals. Insoluble fiber also adds bulk to stool, stimulates the gastrointestinal tract, and helps prevent constipation.