Cutting out carbohydrates from your diet in an attempt to lose weight can lead to memory loss, according to a study published this month in the medical journal Appetite.

The study by scientists from Tufts University in Boston, America – which clearly demonstrates that the food you eat can have an impact on mental performance – found that dieters who avoided carbohydrates do worse in mental tests than those who are allowed some pasta, bread and potatoes. This is because carbohydrates are an important source of energy or fuel for the brain and mental performance drops after just a week on low carbohydrate diets. The aim of the study was to look at the impact of low carbohydrate diets on the brain power of 19 women aged 22 to 55. Volunteers were put on either a low calorie balanced diet or a low carbohydrate diet. Within a week ten women on the low carbohydrate diet were far worse at mental tests than those on a conventional balanced diet. The tests looked at attention, long term and short term memory, visual attention and spatial memory and the low carbohydrate dieters showed a gradual decline in memory tasks compared to the low calorie balanced dieters. Their reaction time was sluggish and their visual memory poor.

 

The researchers believe that low carbohydrate diets reduce the amount of blood sugar or glucose which is carried to the brain and used by nerve cells for energy. The brain needs a constant supply of glucose for energy and diets low in carbohydrates can be detrimental to learning, memory and thinking. Low carbohydrate diets can also be detrimental to long term weight loss because they are not sustainable in the long term and create nutritional deficiencies which can lead to blood sugar imbalances, mood swings and comfort eating.

 

What is not clear from this research is what they mean by low carbohydrate diets.  Fruit and vegetables are also carbohydrates and with the extreme high protein low carbohydrate diets these are also omitted along with starchy carbohydrates.  We do need carbohydrates for ‘brain energy’ but they need to be the right carbohydrates and we can easily omit the added sugar and white flour carbohydrates which will be better for our health generally and will not effect brain function negatively  In fact by not having these in the diet, it can often improve memory and concentration because the blood sugar is not fluctuating wildly. 

Traditional hot drinks for a cold really do help fight colds and flu, according to research by experts at Cardiff University’s Common Cold Centre and published in the journal Rhinology.

The study, which is believed to be the first scientific research of its kind, proved that a steaming hot cup of fruit juice not only tastes nice but actually helps to reduce the symptoms of colds and flu. The researchers studied the effects of either a hot or room temperature apple and blackcurrant (both high in immune boosting vitamin C) drink on 30 volunteers with cold symptoms. Those who sipped the hot drink found that it improved air flow through the nose and raised body temperature producing a feeling of well being as well as immediate and sustained relief from symptoms of a runny nose, cough, sneezing, sore throat, chillness and fatigue.

 

In addition to a hot fruit juice, another simple and cheap remedy to stop the sniffles is elderberry.  Elderberry juice can act as a remedy for coughs, cold infections, bronchitis and fever. Scientific tests have proven that elderflowers have anti-inflammatory properties and confirmed that elder can be beneficial for treating symptoms of flu. (You can also get good elderberry supplements to boost the immune system – see the Resources Page).

According to research from the National Cancer Institute in Maryland and published in Breast Cancer Research journal, women who regularly carry out vigorous exercise in their 60s are up to 30 per cent less likely to develop breast cancer, than those who exercise gently. The findings add to the weight of evidence about the power of exercise to reduce the risk of breast cancer, which kills more than 1,000 women in the UK every month.

The American researchers made the connection after tracking the health of more than 32,000 women, average age 61, for eleven years. At the start of the study the women were asked how much gentle and strenuous exercise they did. Gentle exercise included light housework as well as walking, golf and cycling. Examples of vigorous exercise included heavy housework, such as cleaning floors, digging the garden and chopping wood as well as running, tennis and dancing. Eleven years later 1,506 of the women had developed cancer. Analysis showed that vigorous but not gentle exercise was more likely to cut the risk in women who were not overweight.

 

Although the Maryland study suggested that vigorous exercise is more beneficial for reducing risk, other studies have shown that gentler exercise is better than no exercise at all and can help ward off breast cancer. A six year study of more than 20,000 European women recently concluded that hovering, dusting and other light domestic chores cut the risk by up to 30 per cent.

 

There is still much debate about the best form of exercise and how much women over 60 should do to reduce their breast cancer risk but we do know that regular exercise is highly recommended because it can help prevent weight gain and obesity which are known to increase breast cancer risk.