Archives for February 2010

A Guide to the D Vitamin

The D vitamin is the only vitamin that is not obtained from foods that are consumed. Instead, the D vitamin is actually obtained by sunlight on the skin. There has been a lot of media coverage about the dangers of getting too much sun but it is essential that the skin is exposed to sunlight to obtain the recommended daily allowance of the D vitamin. In reality, the amount of time that a person has to spend in the sun to receive a sufficient dose of the D vitamin is extremely small and just a few minutes a day will be sufficient and not have any adverse effects from the amount of ultra-violet light received.

The most important function of the D vitamin is to help control how much calcium is absorbed from food. The majority of the calcium is used to build strong teeth and bones but it is also needed to send messages along the nerves and to help muscles, such as the heart muscles, to contract. It is the D vitamin that ensures that there is always sufficient calcium in the blood to perform these tasks. Other functions that require the D vitamin relate to the immune system and it is believed that it is also a contributing factor in reducing the risk of contracting cancer and, in particular, colon cancer.

The variant of the D vitamin that is formed under the skin is known as vitamin D3, or cholecalciferol. This D vitamin is created when the ultraviolet in the sunlight reacts with a type of cholesterol that is found under the skin naturally. The D3 is converted into a more active form of the d vitamin in the liver and is then diverted to where it is needed the most. Some of the D vitamin remains in the liver and kidneys to help reabsorb the calcium from the blood. The rest of the D vitamin is dispersed to the bones to help them retain their calcium and the intestines to aid absorption of calcium from food.

Even though the majority of the D vitamin is formed through the exposure of the skin to sunlight there are some foods that do contain some of the vitamin naturally. This form of the D vitamin is known as vitamin D2, or ergocalciferol. This is used in the same way as the other D vitamins and is the type used to create the majority of D vitamin supplements.

Health Pointers for the Fitness Babes

Exercise is an essential in life. Most people will certainly nod their heads to this. Exercise is not only perfect for losing weight, it is also good for keeping a reasonable body weight, for giving a boost on the metabolic rate and also for burning those unwanted excess calories. Exercise also revs up the heart and the lungs’ machinery making them more efficient in doing their natural functions.

Aside from these, exercise also works for strengthening the bones and keeps people looking good and feeling good about themselves. Exercise also gives people the stamina to enable them to keep up with the pace of their lifestyles. Unfortunately, not many people chose to do what is good for them. Most people could not decide exactly what to do when waking up in the morning; whether to exercise or to press the snooze button one more time.

The following tips are very helpful in reaching and maintaining the ideal body weight. This is especially great for women since they get through a lot of things going on in their bodies and are more susceptible to osteoporosis. Not to mention that many women are under the pressure of keeping themselves beautiful. It is recommended that one or two of these tips at a time are incorporated to the work out routine.

Worry not that the exercise routine is not enough. It is important to keep the commitments one makes. Ideally, it is advised to exercise three to five times a week for 20-60 minutes. However, this is not exactly the case in the real world. One should not frustrate herself by aiming for the ideal when she knows for herself that it is utterly impossible. If she an manage it two times a week for twenty minutes per session, that will do just great.

It is best to focus on doing what one knows she can do than to reproach herself for having not done enough. She can start from this point and then progress on afterwards. This should make her feel successful for having kept her commitment to herself.

Weight lifting should always come first. Many women always do cardio exercises first before weight lifting. A disadvantage of this is that it is possible to miss a critical component of the routine and spend all of it on cardio training. A women may notice this by not being able to see results even after devoting long hours at the gym. This can be avoided by reversing the order. This will guarantee visible positive outcome.

Remember to monitor heart rate. It is recommended to exercise at 75-85% of the maximum heart rate. Many people stick with just pumping up only 50% of their maximum heart rate. To ensure that one is working out at the prescribed target heart rate, she should use a heart rate monitor or any exercise equipment with this feature.

Work out for only an hour or less. Doing this will keep one from dreading the gym. Focusing on the exercise and the aim to be accomplished will make each work out session more and more efficient.

Have some sort of fitness social support. Being in a fitness community maybe the important element lacking in your training program. A social support can do amazing wonders and therefore should not be underestimated. It would be helpful to work out in a gym once in while if one customarily does her work outs at home. One can also try classes in activities that have always been interesting such as yoga, pilates or sailing perhaps. One can also join clubs such as a walking club or a running club for instance.

Pep talk yourself. One should not pressure herself too much; rather, it is best to congratulate one’s self and give out words of encouragement in between exercises. One should never forget to say some positive feedback for herself.