Aerobic exercise
Learning Center
Shopping for shades?
Ultraviolet (UV) radiation from the sun can damage your eyes, not just your skin. Choose sunglasses that block 99% to 100% of both UVA and UVB rays. Opt for wraparound sunglasses or closefitting sunglasses with wide lenses that protect your eyes from every angle. Keep in mind that the color of the lenses and the degree of darkness the sunglasses provide have nothing to do with the sunglasses' ability to block UV rays.
Self-tanners: Are they safe?
Sunless tanning products, also called self-tanners, can give your skin a tanned look without exposing you to harmful ultraviolet (UV) rays. The active ingredient in most sunless tanners is the color additive dihydroxyacetone (DHA). DHA reacts with dead cells in the skin's surface layer to temporarily darken your skin. The coloring gradually fades within a few days. Caution: Most self-tanners don't contain sunscreen. If you spend time outdoors, sunscreen is essential.
How much exercise do you need?
For most healthy adults, the Department of Health and Human Services recommends at least 150 minutes of moderate aerobic activity or 75 minutes of vigorous aerobic activity a week, or a combination of moderate and vigorous activity. Moderate aerobic exercise includes activities such as brisk walking or swimming. Vigorous aerobic exercise includes activities such as running or aerobic dancing. The guidelines suggest that you spread out this exercise during the course of a week. The guidelines also recommend that you do strength training exercises for all major muscle groups at least twice a week.
Hay fever: How to avoid triggers
If you have hay fever, the best thing you can do is to take steps to lessen your exposure to allergens, such as pollen and mold spores: 1. Close doors and windows during pollen season. 2. Use air conditioning in your house and car. 3. Avoid outdoor activity in the early morning, when pollen counts are highest, and also on high pollen-count days. 4. Use a dehumidifier to reduce indoor humidity. 5. Use a high-efficiency particulate air (HEPA) filter in your bedroom.
Have brown or Black skin? Use sunscreen
If you have brown or Black skin, you still need sunscreen. It's a myth that people with skin that doesn't burn easily can skip the sunscreen. Regardless of skin color, the sun's energy penetrates deeply into the skin. This causes damage that may ultimately lead to skin cancer. If you spend time outdoors during daylight hours, you need to use sunscreen.
Focus on fit when shoe shopping
To find shoes that fit properly, try these tips: 1. Have your feet measured. Shoe size can change as you age. 2. Ask the salesperson to measure both feet. If one foot is larger than the other, try on a pair that fits your larger foot. 3. Shop for shoes later in the day after you've been walking for some time, when your feet are at their largest.
Exercising? Take it up a notch
Want to get the most out of your workouts? Try interval training! This simply means alternating bursts of intense activity with intervals of lighter activity. Take walking. If you're in good shape, try incorporating short bursts of jogging into your regular power walks. If you're less fit, alternate leisurely walking with periods of faster walking. (For example, if you typically walk outdoors, walk faster between certain mailboxes, trees or city blocks.) The more vigorously you exercise the more calories you'll burn, even if you increase intensity for just a few minutes at a time.
Don't let your tots burn
When you head outside for family fun this summer, be sure to protect small children from burns. Keep sunblock handy and protect against other burn hazards: 1. Keep little ones away from grills, fire pits and campfires. 2. Don't let children play with or near fireworks or sparklers. 3. Check children's car seats for hot straps or buckles. These can heat up quickly in a car parked in direct sunlight.
Buying athletic shoes? Check your arch
Athletic shoes should be tailored to your arch type (high arch, neutral arch, low arch). Your arches play an important role in how you adapt to various surfaces as you walk. But there is no one "best shoe" for a particular foot type, and comfort and proper fit should be the main criteria you use.
Banish back pain
Back pain is a common complaint. In most cases, you can take steps to prevent back pain. Try these: 1. Exercise regularly. 2. Practice good posture. 3. Use proper lifting techniques. 4. Sit in chairs that support your lower back. 5. Maintain a healthy weight.
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