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  • midlifelove 11:04 am on December 9, 2009 Permalink | Reply
    Tags: choclate, dairy products, , , low protein diet, obesity, , weight loss myths,   

    Big Fat Lies About Weight Loss 

    Even doctors are confused about the facts on getting fatter.

    A “most read” report in the Sydney Morning Herald by Australian scientists Garry and Sam Egger has separated truth from fiction by surveying doctors and truck drivers on popular myths about weight loss – and they found the doctors were wrong almost as often as the truckies.

    The Top 12 Weight Loss Lies

    1) Fruit juice is about as fattening as beer – TRUE

    Both have about the same kilojoule intake, but alcohol cannot be stored and turned into fat.

    2) Humans need 8 glasses of water a day – FALSE

    The 8 glasses a day rule is “arbitrary and meaningless.” The amount of fluid you need varies according to age, gender, activity level, state of health and the weather – and varies from 3 to 24 glasses a day.

    3) Dairy products can help weight loss – TRUE

    It’s controversial, but recent research suggests eating low-fat dairy is linked to weight loss.

    Dairy ingredients like whey protein, and a combinations of ingredients, like protein and calcium, can increase feelings of fullness, and increase the calories expelled as waste  – both of which may assist weight loss.

    4) Chocolate is healthy provided it is dark – FALSE

    Genuine dark chocolate can have health benefits, but much “dark” chocolate has had the bitter-tasting flavinoids (the good antixodants)  removed and cocoa added, changes which do not have to be noted on the labels. Just because it’s labelled “dark” doesn’t mean it’s good for you.

    5) Exercise is better than dieting for weight loss – FALSE

    While exercise is likely to be important in maintaining weight loss, it’s easier to lose weight by dieting at the start. That’s because reducing intake by 1000 calories a day is the equivalent of walking an extra 15 kilometres daily – unrealistic for most people.

    6) A low-protein diet is best for weight loss – FALSE

    A reasonable intake of protein is likely to be better for weight loss than a low-protein diet, partly because protein gives a feeling of “fullness”.

    The present protein intake of about 13 to 15 per cent of total energy is well below the estimated 25 to 30 per cent often proposed for weight loss and a healthy diet.

    7) Fat people don’t get more hungry than lean people – TRUE

    There is little reason to believe in a difference in genuine hunger – as distinct from psychologically conditioned ”appetite” – between slim and overweight people.

    8) Swimming is better than walking for weight loss – FALSE

    In general, the best exercises for weight loss are those that are weight-bearing, such as walking or jogging. Up to 30 per cent less energy is used in activities such as swimming or cycling, which support weight and can be carried out at a more leisurely pace.

    9) Weight lifting is good for fat loss – TRUE

    Resistance training is often underrated and considered only for the development of strength or size. Weight lifting can be effective for weight loss as well as muscle strengthening.

    10) The best measure of body fat is body mass index -FALSE

    Body mass index (BMI) – a ratio of weight to height – is less accurate in people with a more muscular body type, some ethnic groups such as Pacific Islanders, and the elderly, whose height shrinks with age. Waist circumference and some other body measures provide better estimates.

    11) You lose more weight doing exercise you are good at – FALSE

    Individuals become more efficient and expend less energy as they become experienced with a particular form of exercise. A fit, experienced runner, for example, requires less energy to cover a set distance than an unfit individual of the same weight, age and gender.

    12) An obese person can be fit and healthy – TRUE

    There is accumulating evidence that many obese people are fit and healthy, while a significant proportion of lean individuals suffer from health problems normally associated with obesity. This has led to new questions about the effects of obesity as a marker, rather than a cause, of disease.

     
  • midlifelove 11:37 pm on February 22, 2009 Permalink | Reply
    Tags: , blood supply to penis, cardiovascular disease, , , , , , medication, obesity, sexual desire, supplements, testoterone, treatment, ,   

    Is testosterone supplementation effective for ED? 

    The short answer is yes – in some, but not all – cases where testosterone levels are low.

    Approximately 10 to 15 percent of men with erectile dysfunction suffer from low testosterone levels. Yet up to a quarter of all men are estimated to have low testosterone levels, with that number rising as men age – and it’s not clear why some, but not all, experience ED as a consequence.

    What is clear is that when low testosterone is the cause of ED, 40 to 60 percent of men benefit from testosterone supplementation. When other factors – poor blood supply to penis, stress, etc – are involved – testosterone treatment alone is not nearly as effective in curing erectile dysfunction, even though it may increase sexual desire.

    Now it’s become clear that testosterone supplements can give a big boost to men who don’t respond to impotence drugs like Viagra, Levitra and Cialis. It is estimated a significant proportion of men – between 25 and 50 per cent – do not respond to the medications which have become known as PDE5 inhibitors.

    When testosterone is added to the therapy up to 70 per cent of men with low testosterone find the cure for erectile dysfunction, as well as improving their orgasms and overall quality of life.

    The same strong result was found in men with low testosterone using long acting testosterone therapy alone, who received testosterone injections at six weeks and then three monthly intervals.

    After twelve and 30 weeks of testosterone treatment, 20 out of the 29 patients demonstrated marked improvement in erectile function, without using any other medication.

    As a result, men’s health organisations are reporting a change in the attitude to the use of testosterone supplements – which recent studies have found can be helpful in treating conditions linked with male ageing like tiredness, depression, and lack of libido.

    Recent studies have also suggested that the effects of an age-related lack of testosterone may go beyond feeling a bit tired, with type 2 diabetes, obesity and cardiovascular disease appearing to be linked with it.

    Another reason for updating the guidelines on who to screen for testosterone deficiency and how to treat it lies in the results of some studies that suggest that some of the fears about testosterone supplements increasing the risk of prostate cancer may have been unfounded.

    The new guidelines recommend measuring testosterone in all men who have both type 2 diabetes and symptoms of testosterone deficiency, and in those with erectile dysfunction or low libido.

    “This is a major change. That puts a lot of people in the category of being screened for low testosterone,” says Andre Araujo, director of epidemiology at the New England Research Institutes in Watertown, Massachusetts.

     
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