what's the buzz

what's the buzz

Even single cup of tea boosts the brain

A new study has claimed that the nutrients found in a cup of tea can boost your brain power and increase alertness.

For the research, Dutch scientists studied the brain activity in 44 young volunteers to analyze the effect of key chemicals, an amino acid called L-theanine, and caffeine at levels typically found in a cup of tea, News.com.au reported.

The natural ingredients radically enhanced accuracy across a number of switching tasks for those who drank the tea after 20 and 70 minutes, compared with those who didn’t.
The study also found that tea drinkers’ had heightened alertness and were less tired as compared to their non tea-drinker counterparts.

Researchers added that the results of the study suggest that the combination helps to focus attention during a demanding cognitive task.

The study was published in the journal Nutritional Neuroscience.

Preparing a shopping list may help you lose weight

A new study has claimed that preparing a shopping list could actually lead to greater weight loss.The study found that people who prepare shopping lists before hitting the supermarket lost an additional 0.69kg a month, News.com.au reported.

The researchers at Monash University’s Centre for Health Economics looked at whether precommitment strategies such as shopping to a grocery list would result in greater weight loss in people who are overweight or obese.

Lead researcher Dr Nicole Au and her team looked at strategies for weight loss from a relatively new discipline, behavioural economics.

These strategies exploit people’s behavioural tendencies and habits to nudge them towards decisions which are healthier and more in line with their long-term goals.

Dr Au said a predetermined grocery list committed shoppers to buy only the foods that were on that list thereby helping them avoid the temptations of unhealthy food purchases.

High intensity exercise safe for cardiac patients

A new study has revealed that high-intensity exercise is protective against coronary heart disease (CHD).

Researchers have found that high-intensity exercise is very beneficial for people who already have heart disease.

K. G. Jebsen from Center of Exercise in Medicine at the Norwegian University of Science and Technology (NTNU) in Trondheim, Norway, analyzed data from four randomized, controlled trials conducted at the centre to try to determine what characterized the most effective high-intensity training programme for this patient group.

The researchers used changes in VO2max, which is peak oxygen uptake, as a measure of the effectiveness of the different exercise regimes.

The exercise period lasted for 12 weeks. The participants ran or walked on treadmill, walked uphill outdoors or trained in a group, all following the 4x4 exercise model. The 4x4 exercise model involves 4 minutes of high-intensity exercise followed by 3 minutes of moderate-intensity exercise, repeated 4 times.

Lead author of the study, Trine Moholdt, said that when they compared VO2max before and after the training period, they found that the number of training sessions, the subject’s age or baseline fitness levels had no impact, however the intensity of the intervals had a significant effect, and seemed to be the most important characteristic of an effective interval session.