25 Aralık 2010 Cumartesi

Weight-loss tips for men: Sizing yourself up

Weight-loss expert Andrew Dickson has advice for blokes who think of themselves as ‘naturally big’.
I'm going to talk about the reality and fantasy of ‘big men’. I’m not talking about the Jonah Lomus of the world, but average men who think of themselves as ‘naturally big’ when really, they just ‘eat big’. I was one of them.

Size matters

I spent many years eating huge quantities of food, while my wife Anna looked on with amazement and concern. When she remarked on the quantity, I would say, “But I’m a big bloke. I need to eat this much.” I ate what I thought I needed to – hunger and satiation were largely irrelevant.
One weekend, Anna and I were staying with my brother Mark and his wife. Anna suggested that for the entire day, I should try and eat exactly the same as Mark, who is about the same height as me and has always been in the normal weight range. I agreed to give this a go and although I was intensely anxious that I would starve, I didn’t. This was a turning point. I realised I was eating for what I thought I was, not for what I am – a normal-sized bloke.
Today, Mark weighs about 76-82kg and I weigh about 89-94kg, so at times I can still be 18kg heavier than him, and our BMIs can be fairly different. However, we are both active, healthy blokes. The interesting bit is that today Mark and I eat a similar amount, even though I am still physically bigger than him – the key is to realise our size difference does not mean I necessarily need to eat a lot more.
If you think you might be eating for the body you think you are rather than the body you truly are, check out the following tips for some tricks to put your perception of yourself to the test.

Tips to challenge your inner big bloke

Try out these strategies – you may actually find you are a normal-sized guy.
  1. Con one of your mates into doing the ‘eat what he eats’ day. Pick a mate who you think of as a ‘normal-sized bloke’, and who is about the same height as you. Don’t ask Ma’a Nonu!
  2. When you’re at a restaurant, order the same meal as the smallest adult at the table. See how you feel an hour after you have finished eating.
  3. During your next café breakfast or brunch, order the vegetarian or cereal option instead of the ‘big breakfast’ – then take note of how you feel for the rest of the day.

Heart Diseases and Foods

Coronary heart disease is the most common of all heart diseases. It is characterized by blockage in the coronary arteries that result in reduction of blood flows to the heart muscle, depriving it of vital oxygen. The clogging of coronary artery, known as arteriosclerosis, begins with fatty streaks in and under the layer of cells, that line artery walls. Gradually, the streaks are transformed into plaques-fatty scar tissue that bulges into the artery opening, partly choking off blood flow.

If the clot becomes large enough, it can block blood flow, suffocating large patches of cardiac muscle, an event known as a heart attack or angina. Or if a blood vessel to the brain closes off or ruptures, it will result in a stroke. While the exact causes of coronary heart disease are imperfectly understood, certain major risk factors have been identified, including genes, gender, diet, and lifestyle - smoking, exercise, and stress.
Scientific evidence indicates that diet is vital to whether your arteries clog or your heart gives out. Stopping the progression of artery disease in the first place with your diet is foremost in warding off heart attacks and strokes. Even if you already had heart problems, including a heart attack, changing your diet now may prevent future cardiac problems and even halt or reverse arterial damage, helping restore arteries to health.
Foods with anti-heart disease activity can:
  1. Block platelet aggregation (clotting)
  2. Reduce blood vessel constriction
  3. Increase blood flow
  4. Lower fibrinogen (clotting factor)
  5. Increase fibrinolytic (clot-dissolving) activity
  6. Block cell damage from oxygen free radicals
  7. Lower triglycerides
  8. Raise good HDL cholesterol
  9. Makes cell membranes more flexible
  10. Lower blood pressure
However, wrong food choice may do just the opposite of the above.

Brain Power Foods

Brain power is characterized by how alert, energetic, and concentrated your brain is in response to a task. Information in your brain passes through neurotransmitters, which are manufactured by the nerve cells using precursors. Different neurotransmitters will have different impacts on your brain activity. For example, serotonin is the calming neurotransmitter that usually makes you more relaxed, drowsy, and fuzzy-headed. While dopamine and norepinephrine are neurotransmitters that make you more alert, more attentive, motivated and mentally energetic.
Food affects your brain power by affecting the production of neurotransmitters in your brain. By supplying amino acids, which are used as precursors to manufacture neurotransmitters, and by affecting the entry of the amino acids into brain, foods can have a significant impact on your brain activity. High-carbohydrate foods in general tend to subdue brain activity. Protein foods, on the other hand, can counteract carbohydrate food induced sluggishness. In addition, foods and herbs can have effects on brain activity by affecting blood circulation - the supply line of oxygen, nutrient, and hormone to the brain.